Lake Carl Blackwell a/k/a Carl Blackwell Lake is 8 miles (13 km) west of Stillwater, Oklahoma. Primarily a recreational area, it is almost midway between Tulsa and Oklahoma City . It was constructed in 1937. The lake is owned and operated by Oklahoma State University (OSU).
136-531: The lake was named for Carl Petty Blackwell, Sr. (1886-1937), who had been dean of agriculture and director of the experimental station of the Oklahoma Agricultural and Mechanical College at Stillwater (now the Oklahoma State University (OSU). The lake has a surface area of 3,370 acres (13.6 km), a capacity of 61,500 acre-feet (0.0759 km), a shoreline of 59.2 miles (95.3 km) and
272-566: A lower house based on population; and the Senate , an upper house based on equal representation for each state. Federalism provides substantial autonomy to the 50 states, while the country's political culture promotes liberty , equality , individualism , personal autonomy , and limited government . One of the world's most developed countries , the United States has had the largest nominal GDP since about 1890 and accounted for over 15% of
408-472: A pistol range , a sporting clay course , four skeet fields , three skeet or trap fields and four trap fields along with amenities like parking and restrooms. It would also be open to the public for training and hunter safety programs. The estimated annual cost is $ 415,000. Future projects, according to the OSU construction project manage include adding a conservation center, nature trail, two sporting clay courses,
544-562: A " Special Relationship " with the United Kingdom and strong ties with Canada , Australia , New Zealand , the Philippines , Japan , South Korea , Israel , and several European Union countries ( France , Italy , Germany , Spain , and Poland ). The U.S. works closely with its NATO allies on military and national security issues, and with countries in the Americas through
680-411: A FITASC shooting competition parcours , 3-D archery and a pavilion with restrooms. Opposition has come mainly from Lake Blackwell equestrian group who had been putting their own labor and money into building the riding trails that will be eliminated by the new facility since the 1960s. Group members have said that they have built a 50 miles (80 km) riding trail complex, they built Hunt's Meadow,
816-482: A barrier. The firing line, usually marked red or orange, runs along the downrange edge of the shooting booths. Some ranges have motion detectors that can set off an alarm when a shooter passes this line during shooting. Target systems consist of a target object and optionally a target carrier system and a target control system. Some ranges utilise electronic scoring systems which do not require paper targets to be placed downrange. Targets for indoor ranges are usually
952-433: A canvas or hessian back on the larger long-range types. Most competitive targets are a solid black circle on a white background. The black circle may have scoring rings. Targets of other shapes may be used such as used in pistol (hand gun) target shooting. Reactive targets allow shooters to easily identify bullet strikes. This allows shooters to improve their skills by quickly being able to compare their aiming point and where
1088-533: A coordinated, continent-wide military effort. Finally, deteriorating relations between the British military establishment and the colonists, relations that were already less than positive, set the stage for further distrust and dislike of British troops. Following their victory in the French and Indian War, Britain began to assert greater control over local colonial affairs, resulting in colonial political resistance ; one of
1224-425: A covered firing point are usually grass, often on a slightly raised, flattened mound. Outdoor ranges with a covered firing point are usually concrete or tarmacadam. Outdoor military range firing points are not usually covered and may have other configurations, e.g., sloping, a gravel base or hole in the ground. A "fixed firing point" or echelon rifle range is where the targets are located at the various distances with
1360-522: A decentralized government that operated until 1789. After the British surrender at the siege of Yorktown in 1781 American sovereignty was internationally recognized by the Treaty of Paris (1783), through which the U.S. gained territory stretching west to the Mississippi River, north to present-day Canada, and south to Spanish Florida . The Northwest Ordinance (1787) established the precedent by which
1496-558: A defined private area and to reduce potential hazard from misfires and prevent ejected cartridge cases from hitting/distracting adjacent shooters. Shooting booths are made of partitions or panels which can be acoustically treated to reduce the unpleasant effects of noise on surrounding bystanders. The booths are sometimes equipped with communication or target-operation equipment; target or booth lighting controls; shelves for holding weapons and bullets, or to prevent shooters from going downrange; and equipment for practicing shooting from behind
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#17328476589631632-407: A few prominent industrialists , largely by their formation of trusts and monopolies to prevent competition. Tycoons led the nation's expansion in the railroad , petroleum , and steel industries. The United States emerged as a pioneer of the automotive industry . These changes were accompanied by significant increases in economic inequality , slum conditions , and social unrest , creating
1768-616: A founding member of the World Bank , Organization of American States , NATO , and the United Nations , as well as a permanent member of the UN Security Council . The first documented use of the phrase "United States of America" is a letter from January 2, 1776. Stephen Moylan , a Continental Army aide to General George Washington , wrote to Joseph Reed , Washington's aide-de-camp , seeking to go "with full and ample powers from
1904-404: A high retaining wall behind the target line called a backstop or stop-butt, comprising an earth mound, sandbag barrier or specially designed funnel-shaped traps to catch and prevent misaligned shots, errant projectile ricochets, or shots going beyond the bounds of the shooting range. Most outdoor ranges restrict the maximum caliber size and/or projectile energy based on the design specification of
2040-462: A minute of angle for this wind. Aligning the target at the 12 o'clock position or direction, with the 6 o'clock direction being directly behind the shooter, winds at 3 or 9 o'clock are equated to full value, winds at 1, 2, 4, 5, 7, 8, 10, 11 o'clock are equated to half value, and winds at 12 and 6 o'clock are equated to no value. The minute of angle correction (full value) is then commonly estimated as ((Range [meters] / 100) × Wind [mph]) / C , where C
2176-399: A normal surface elevation of 944 feet (288 m). The maximum depth has been reported as 45.9 feet (14.0 m). An 800 acres (3,200,000 m) recreation area adjoins the lake. It is also owned and managed by OSU. Activities include camping, horseback riding trails, mountain bike trails, boating, hiking, fishing, duck hunting and picnicking. A controversial shooting center ( gun range )
2312-475: A paper sheet or piece of corrugated cardboard with a printed image, either a bullseye or a silhouette . Target carrier systems allow a range to operate more efficiently and safely by transporting targets between the firing line and the target line, so the shooter does not have to wait for a "ceasefire" and physically walk downrange to examine and set up the target. This is particularly useful on commercial and "self service" ranges. The target control system allows
2448-583: A period of heightened, overt racism following Reconstruction, a time often called the nadir of American race relations . A series of Supreme Court decisions, including Plessy v. Ferguson , emptied the Fourteenth and Fifteenth Amendments of their force, allowing Jim Crow laws in the South to remain unchecked, sundown towns in the Midwest, and segregation in communities across the country , which would be reinforced by
2584-408: A primitive 19-site campground, picnic tables and hitching posts. In June, 2019, Oklahoma State University announced that it was beginning to treat Lake Carl Blackwell with a species-selective herbicide "ProcellaCOR SC" to control the spread of an invasive species of lily called "Yellow Floating Heart" (YFH) . The plant is non-native, outproduces native plants and forms dense surface mats that reduce
2720-488: A prominent leader in the early 1960s. The Great Society plan of President Lyndon Johnson 's administration resulted in groundbreaking and broad-reaching laws, policies and a constitutional amendment to counteract some of the worst effects of lingering institutional racism . The counterculture movement in the U.S. brought significant social changes, including the liberalization of attitudes toward recreational drug use and sexuality . It also encouraged open defiance of
2856-491: A report highlighting the shortcomings of current occupational lead exposure standards and urged the United States Department of Defense to update its guidelines and practices for protecting workers from lead exposure on firing ranges. Lead and other pollutants are regulated by ventilation in a range. The configuration of the supply and exhaust air systems is critical for proper operation. Interlocks that enable both
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#17328476589632992-448: A rubber curtain through which the bullet passes and is then stopped by a metal plate. The rubber curtains help reduce ricochet or bounce-back of bullet fragments. Ranges without automatic target placements sometimes have galleries or trenches from where personnel lift and retract, mark and replace targets. Backstops need to be of sufficient height to capture the projectile intended for the target as well as any ricochet that may occur from
3128-518: A sense of manifest destiny . The Missouri Compromise attempted to balance the desire of northern states to prevent the expansion of slavery into new territories with that of southern states to extend it, admitting Missouri as a slave state and Maine as a free state. It further prohibited slavery in all other lands of the Louisiana Purchase north of the 36°30′ parallel . As Americans expanded further into land inhabited by Native Americans,
3264-603: A sense of American identity as well. Men who otherwise never left their own colony now traveled across the continent to fight alongside men from decidedly different backgrounds but who were no less "American". British officers trained American officers for battle, most notably George Washington ; these officers would lend their skills and expertise to the colonists' cause during the American Revolutionary War to come. In addition, colonial legislatures and officials found it necessary to cooperate intensively in pursuit of
3400-466: A small leaf or another small light object can be dropped from shoulder height, and the object is then pointed at by the shooter; the angle between his arm and his torso can provide an equivalent wind speed estimation as a wind flag, although it will not be at the mid-range location along the bullet's trajectory. Lighting should be consistent in intensity, glare-free, and shadow-free. The shooter's vision down range should not be obstructed by lighting behind
3536-840: A smooth surface finish and are usually slanted slightly from up range (shooter positions) toward the backstops downrange to allow for better maintenance and cleaning. Indoor range roofs are constructed from steel joists or precast concrete panels with a smooth flat surface that will redirect misfired bullets, facilitate maintenance, and prevent lead buildup. Roof baffles are installed at a 25–30 degree angle to protect ceilings, lighting fixtures, ventilation ducts, and any other unprotected element from stray bullets. Baffles are typically constructed of armored plate steel covered with fire-rated plywood. Deflectors are similar to baffles, but are not usually covered with plywood; they can be installed either vertically or horizontally and are used to redirect stray bullets from unprotected fixtures and elements inside
3672-611: A status solidified after its involvement in World War I . After Japan 's attack on Pearl Harbor in December 1941, the U.S. entered World War II . Its aftermath left the U.S. and the Soviet Union as the world's two superpowers and led to the Cold War , during which both countries struggled for ideological dominance and international influence . Following the Soviet Union's collapse and
3808-401: A year). Juvenile correctional facilities are operated by local or state governments and serve as longer-term placements for any minor adjudicated as delinquent and ordered by a judge to be confined. As of January 2023, the United States has the sixth-highest per capita incarceration rate in the world—531 people per 100,000 inhabitants—and the largest prison and jail population in
3944-457: Is a federal union of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the states of Alaska to the northwest and the archipelagic Hawaii in the Pacific Ocean . The United States also asserts sovereignty over five major island territories and various uninhabited islands . The country has
4080-444: Is a constant. The constant C equals 15 for ranges from 100 to 500 meters, 14 for 600 meters, 13 for 700–800 meters, 12 for 900 meters, and 11 for 1,000 meters. For full-value winds, this full windage correction is used. For half-value winds, the minute of correction in windage given by this formula is halved; for no-value winds, no minute of angle correction in windage is required. Multiple flags are required for two reasons. First,
4216-571: Is believed to be the first widespread culture in the Americas. Over time, indigenous North American cultures grew increasingly sophisticated, and some, such as the Mississippian culture , developed agriculture , architecture , and complex societies . In the post-archaic period , the Mississippian cultures were located in the midwestern , eastern , and southern regions, and the Algonquian in
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4352-543: Is determined by how often the range is used. Wet methods or a vacuum fitted with a high-performance particulate air (HEPA) filter may be used to clean. The risk of unburned powder accumulating necessitates the use of an explosion-proof HEPA vacuum. United States The United States of America ( USA ), commonly known as the United States ( U.S. ) or America , is a country primarily located in North America . It
4488-492: Is known as the presidential system , in contrast to the parliamentary system , where the executive is part of the legislative body. Many countries around the world imitated this aspect of the 1789 Constitution of the United States , especially in the Americas. The Constitution is silent on political parties. However, they developed independently in the 18th century with the Federalist and Anti-Federalist parties. Since then,
4624-438: Is now the United States experienced conflicts with Native Americans, they also engaged in trade, exchanging European tools for food and animal pelts. Relations ranged from close cooperation to warfare and massacres. The colonial authorities often pursued policies that forced Native Americans to adopt European lifestyles, including conversion to Christianity. Along the eastern seaboard, settlers trafficked African slaves through
4760-542: Is the federal agency charged with addressing most environmental-related issues . The idea of wilderness has shaped the management of public lands since 1964, with the Wilderness Act . The Endangered Species Act of 1973 provides a way to protect threatened and endangered species and their habitats. The United States Fish and Wildlife Service implements and enforces the Act. In 2024, the U.S. ranked 34th among 180 countries in
4896-584: The Allies of World War I , helping to turn the tide against the Central Powers . In 1920, a constitutional amendment granted nationwide women's suffrage . During the 1920s and '30s, radio for mass communication and the invention of early television transformed communications nationwide. The Wall Street Crash of 1929 triggered the Great Depression , which President Franklin D. Roosevelt responded to with
5032-548: The Atlantic slave trade . The original Thirteen Colonies that would later found the United States were administered as possessions of Great Britain , and had local governments with elections open to most white male property owners . The colonial population grew rapidly, eclipsing Native American populations; by the 1770s, the natural increase of the population was such that only a small minority of Americans had been born overseas. The colonies' distance from Britain allowed for
5168-529: The Environmental Performance Index . The country joined the Paris Agreement on climate change in 2016 and has many other environmental commitments. The United States is a federal republic of 50 states and a separate federal capital district, Washington, D.C. It also asserts sovereignty over five unincorporated territories and several uninhabited island possessions . The U.S. is
5304-493: The Federal Bureau of Investigation (FBI) and the U.S. Marshals Service have national jurisdiction and specialized duties, such as protecting civil rights , national security and enforcing U.S. federal courts ' rulings and federal laws. State courts conduct most civil and criminal trials, and federal courts handle designated crimes and appeals of state court decisions . There is no unified "criminal justice system" in
5440-688: The Great Lakes , Mississippi River and Gulf of Mexico . British colonization of the East Coast began with the Virginia Colony (1607) and Plymouth Colony (1620). The Mayflower Compact and the Fundamental Orders of Connecticut established precedents for representative self-governance and constitutionalism that would develop throughout the American colonies. While European settlers in what
5576-701: The Great Lakes region and along the Eastern Seaboard , while the Hohokam culture and Ancestral Puebloans inhabited the southwest . Native population estimates of what is now the United States before the arrival of European immigrants range from around 500,000 to nearly 10 million. Christopher Columbus began exploring the Caribbean for Spain in 1492, leading to Spanish-speaking settlements and missions from Puerto Rico and Florida to New Mexico and California . France established its own settlements along
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5712-580: The Midwest . At the same time, about one million French Canadians migrated from Quebec to New England . During the Great Migration , millions of African Americans left the rural South for urban areas in the North. Alaska was purchased from Russia in 1867. The Compromise of 1877 effectively ended Reconstruction and white supremacists took local control of Southern politics . African Americans endured
5848-672: The National Park Service and other agencies. About 28% of the country's land is publicly owned and federally managed, primarily in the Western States . Most of this land is protected , though some is leased for commercial use, and less than one percent is used for military purposes. Environmental issues in the United States include debates on non-renewable resources and nuclear energy , air and water pollution , biodiversity , logging and deforestation , and climate change . The U.S. Environmental Protection Agency (EPA)
5984-583: The New Deal , a series of sweeping programs and public works projects combined with financial reforms and regulations . All were intended to protect against future economic depressions. Initially neutral during World War II , the U.S. began supplying war materiel to the Allies of World War II in March 1941 and entered the war in December after the Empire of Japan 's attack on Pearl Harbor . The U.S. developed
6120-759: The Organization of American States and the United States–Mexico–Canada Free Trade Agreement . In South America, Colombia is traditionally considered to be the closest ally of the United States. The U.S. exercises full international defense authority and responsibility for Micronesia , the Marshall Islands , and Palau through the Compact of Free Association . It has increasingly conducted strategic cooperation with India , but its ties with China have steadily deteriorated. Since 2014,
6256-638: The Pentium microprocessor in accordance with Moore's law , rechargeable lithium-ion batteries , the first gene therapy trial, and cloning either emerged in the U.S. or were improved upon there. The Human Genome Project was formally launched in 1990, while Nasdaq became the first stock market in the United States to trade online in 1998. In the Gulf War of 1991, an American-led international coalition of states expelled an Iraqi invasion force that had occupied neighboring Kuwait . The September 11 attacks on
6392-576: The Spanish–American War . (The Philippines was granted full independence from the U.S. on July 4, 1946, following World War II. Puerto Rico and Guam have remained U.S. territories.) American Samoa was acquired by the United States in 1900 after the Second Samoan Civil War . The U.S. Virgin Islands were purchased from Denmark in 1917. The United States entered World War I alongside
6528-742: The basement . The basic components of most indoor ranges consist of firing lines/lanes, targets and a bullet trap /"backstop" (which prevents stray shots and overpenetrations ). Design considerations may vary depending on planned use but they all must address the basic requirements for operating the range safely, and that is provide ballistic protection, safety controls, proper ventilation, acoustic isolation and appropriate lighting. Firing range walls are usually constructed of poured concrete , precast concrete or masonry blocks . The walls must be sufficiently impenetrable and provide adequate ballistic protection from stray shots and back-splatter. Floors are constructed from dense reinforced concrete with
6664-670: The cotton gin made the institution increasingly profitable for Southern elites . This sectional conflict regarding slavery culminated in the American Civil War (1861–1865). Eleven slave states seceded and formed the Confederate States of America , while the other states remained in the Union . War broke out in April 1861 after the Confederates bombarded Fort Sumter . After
6800-514: The end of the Cold War in 1991, the U.S. emerged as the world's sole superpower , wielding significant geopolitical influence globally . The U.S. national government is a presidential constitutional federal republic and liberal democracy with three separate branches : legislative , executive , and judicial . It has a bicameral national legislature composed of the House of Representatives ,
6936-524: The fall of communism and the collapse of the Soviet Union , which marked the end of the Cold War and left the United States as the world's sole superpower . The 1990s saw the longest recorded economic expansion in American history , a dramatic decline in U.S. crime rates , and advances in technology . Throughout this decade, technological innovations such as the World Wide Web , the evolution of
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#17328476589637072-400: The global economy in 2023. It possesses by far the largest amount of wealth of any country and has the highest disposable household income per capita among OECD countries. The U.S. ranks among the world's highest in economic competitiveness , productivity , innovation , human rights , and higher education . Its hard power and cultural influence have a global reach. The U.S. is
7208-508: The natural ventilation of outdoor firing ranges, some outdoor ranges have ballistic baffles overhead, and concrete walls and structures on the sides that can cause the air to stagnate and lead to increase exposure to lead and noise. Consequently, operators of outdoor ranges might consider adding sound transmission barriers, absorptive materials, and natural vegetation to lessen noise emission. Fans pointing downrange can provide air movement away from shooters to lessen lead exposure. Oftentimes
7344-764: The 1775 Battles of Lexington and Concord , igniting the American Revolutionary War . At the Second Continental Congress , the colonies appointed George Washington commander-in-chief of the Continental Army , and created a committee that named Thomas Jefferson to draft the Declaration of Independence . Two days after passing the Lee Resolution to create an independent nation the Declaration
7480-515: The 2010s, political polarization in the country increased between liberal and conservative factions. This polarization was capitalized upon in the January 2021 Capitol attack , when a mob of insurrectionists entered the U.S. Capitol and sought to prevent the peaceful transfer of power in an attempted self-coup d'état . The United States is the world's third-largest country by total area behind Russia and Canada. The 48 contiguous states and
7616-580: The American West have an alpine climate . The climate is arid in the Southwest, Mediterranean in coastal California , and oceanic in coastal Oregon , Washington , and southern Alaska . Most of Alaska is subarctic or polar . Hawaii , the southern tip of Florida and U.S. territories in the Caribbean and Pacific are tropical . States bordering the Gulf of Mexico are prone to hurricanes, and most of
7752-599: The City of Stillwater. OSU will switch back to Carl Blackwell water about two weeks after tests show no pesticide is present. YFH has been banned in several states, notably including Michigan, Minnesota and Wisconsin. Gun range A shooting range , firing range , gun range or shooting ground is a specialized facility, venue , or field designed specifically for firearm usage qualifications, training, practice, or competitions . Some shooting ranges are operated by military or law enforcement agencies, though
7888-470: The Declaration of Independence on July 4, 1776. The term "United States" and the initialism "U.S.", used as nouns or as adjectives in English, are common short names for the country. The initialism "USA", a noun, is also common. "United States" and "U.S." are the established terms throughout the U.S. federal government , with prescribed rules. In English, the term "America" rarely refers to topics unrelated to
8024-557: The District of Columbia occupy a combined area of 3,119,885 square miles (8,080,470 km ). The coastal plain of the Atlantic seaboard gives way to inland forests and rolling hills in the Piedmont plateau region. The Appalachian Mountains and the Adirondack massif separate the East Coast from the Great Lakes and the grasslands of the Midwest . The Mississippi River System ,
8160-562: The Elder concluded that major military resources needed to be devoted to North America to win the war against France. For the first time, the continent became one of the main theaters of what could be termed a " world war ". The British colonies' position as an integral part of the British Empire became more apparent during the war, with British military and civilian officials becoming a more significant presence in American life. The war increased
8296-664: The January 1863 Emancipation Proclamation , many freed slaves joined the Union army . The war began to turn in the Union's favor following the 1863 Siege of Vicksburg and Battle of Gettysburg , and the Confederacy surrendered in 1865 after the Union's victory in the Battle of Appomattox Court House . The Reconstruction era followed the war. After the assassination of President Abraham Lincoln , Reconstruction Amendments were passed to protect
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#17328476589638432-595: The Rocky Mountains, the Yellowstone Caldera , is the continent's largest volcanic feature. In 2021, the United States had 8% of global permanent meadows and pastures and 10% of cropland. With its large size and geographic variety, the United States includes most climate types. East of the 100th meridian , the climate ranges from humid continental in the north to humid subtropical in the south. The western Great Plains are semi-arid . Many mountainous areas of
8568-625: The U.S. has become a key ally of Ukraine ; it has also provided the country with significant military equipment and other support in response to Russia's 2022 invasion . The president is the commander-in-chief of the United States Armed Forces and appoints its leaders, the secretary of defense and the Joint Chiefs of Staff . The Department of Defense , which is headquartered at the Pentagon near Washington, D.C., administers five of
8704-661: The U.S. territories." Despite disparate systems of confinement, four main institutions dominate: federal prisons , state prisons , local jails, and juvenile correctional facilities . Federal prisons are run by the Federal Bureau of Prisons and hold people who have been convicted of federal crimes, including pretrial detainees. State prisons, run by the official department of correction of each state, hold sentenced people serving prison time (usually longer than one year) for felony offenses. Local jails are county or municipal facilities that incarcerate defendants prior to trial; they also hold those serving short sentences (typically under
8840-416: The United States and the peaceful transfer of power , respectively. The Louisiana Purchase of 1803 from France nearly doubled the territory of the United States. Lingering issues with Britain remained , leading to the War of 1812 , which was fought to a draw. Spain ceded Florida and its Gulf Coast territory in 1819. In the late 18th century, American settlers began to expand westward , many with
8976-541: The United States entered the Cold War, where geopolitical tensions between the U.S. and the Soviet Union led the two countries to dominate world affairs . The U.S. utilized the policy of containment to limit the USSR's sphere of influence, and prevailed in the Space Race , which culminated with the first crewed Moon landing in 1969. Domestically, the U.S. experienced economic growth , urbanization , and population growth following World War II . The civil rights movement emerged, with Martin Luther King Jr. becoming
9112-495: The United States has operated as a de facto two-party system , though the parties in that system have been different at different times. The two main national parties are presently the Democratic and the Republican . The former is perceived as relatively liberal in its political platform while the latter is perceived as relatively conservative . In the American federal system , sovereign powers are shared between two levels of elected government: national and state. People in
9248-402: The United States in 2001 by the pan-Islamist militant organization al-Qaeda led to the war on terror , and subsequent military interventions in Afghanistan and Iraq . The cultural impact of the attacks was profound and long-lasting. The U.S. housing bubble culminated in 2007 with the Great Recession , the largest economic contraction since the Great Depression. Coming to a head in
9384-415: The United States of America to Spain" to seek assistance in the Revolutionary War effort. The first known public usage is an anonymous essay published in the Williamsburg newspaper, The Virginia Gazette , on April 6, 1776. By June 1776, the "United States of America" appeared in the Articles of Confederation and the Declaration of Independence . The Second Continental Congress adopted
9520-434: The United States, despite the usage of "the Americas " as the totality of North and South America. "The States" is an established colloquial shortening of the name, used particularly from abroad; "stateside" is the corresponding adjective or adverb. The first inhabitants of North America migrated from Siberia across the Bering land bridge about 12,000 years ago; the Clovis culture , which appeared around 11,000 BC,
9656-478: The United States, except Iran , North Korea , and Bhutan . Though Taiwan does not have formal diplomatic relations with the U.S., it maintains close unofficial relations. The United States regularly supplies Taiwan with military equipment to deter potential Chinese aggression. Its geopolitical attention also turned to the Indo-Pacific when the United States joined the Quadrilateral Security Dialogue with Australia, India, and Japan. The United States has
9792-509: The United States. The American prison system is largely heterogenous, with thousands of relatively independent systems operating across federal, state, local, and tribal levels. In 2023, "these systems [held] almost 2 million people in 1,566 state prisons, 98 federal prisons, 3,116 local jails, 1,323 juvenile correctional facilities, 181 immigration detention facilities, and 80 Indian country jails, as well as in military prisons , civil commitment centers, state psychiatric hospitals, and prisons in
9928-554: The Welsh Airgun Championships. Outdoor shooting ranges are used for longer-distance shooting up to or exceeding 1,200 yards (1,100 m). Training might also specifically require exposure to the elements such as wind, dust and rain. Outdoor competition shooting is preferred under benign weather conditions, although conditions may change, competition is only abandoned when safety becomes an issue. Outdoor ranges are designed to contain all fired shots. This necessitates
10064-409: The actual bullet impacted the target. Electronic scoring targets use an acoustic or optical system to evaluate the shot as it passes through the target frame. Service rifle competitions typically use the military-standard targets contemporary to the firearm's era. The same applies for the matches they shoot. Other target types include a metal plate that is knocked over by the projectile such as in
10200-488: The air rifle sport of field target or handgun discipline of IPSC, and stationary metal plates of scaled animal outlines on which bullet strikes mark as well as those that mark the paint which is painted over again after scoring. The butts or backstop is the area behind the target into which the shot impacts having passed through the target. Earth or sand berms are common, particularly on outdoor ranges. Vertical or angled steel plates with collectors are common indoors, often with
10336-468: The booths is general ceiling-level lighting and can usually be controlled manually or from the central controls. Lights downrange of the firing line are usually spotlights used to illuminate the targets at various distances downrange of the booths. Safety control systems are installed to protect the shooters during range malfunction or emergency situations. Such systems may include warning lights, alarm bells, and air-flow and filtration monitors. Due to
10472-453: The contiguous United States are in the State of California, about 84 miles (135 km) apart. At an elevation of 20,310 feet (6,190.5 m), Alaska's Denali is the highest peak in the country and continent. Active volcanoes are common throughout Alaska's Alexander and Aleutian Islands , and Hawaii consists of volcanic islands. The supervolcano underlying Yellowstone National Park in
10608-549: The country's GDP. The U.S. has 42% of the world's nuclear weapons —the second-largest share after Russia. The United States has the third-largest combined armed forces in the world, behind the Chinese People's Liberation Army and Indian Armed Forces . The military operates about 800 bases and facilities abroad, and maintains deployments greater than 100 active duty personnel in 25 foreign countries. State defense forces (SDFs) are military units that operate under
10744-464: The country's territory would expand with the admission of new states , rather than the expansion of existing states. The U.S. Constitution was drafted at the 1787 Constitutional Convention to overcome the limitations of the Articles. It went into effect in 1789, creating a federal republic governed by three separate branches that together ensured a system of checks and balances . George Washington
10880-403: The design and proper operation of an indoor ranges is the ventilation system. Proper ventilation reduces shooters' exposure to airborne lead particles and other combustion byproducts. Ventilation systems consist of supply and exhaust air systems and associated ductwork. Supply air can be provided through a perforated wall plenum or radial air diffusers mounted at ceiling height. Airflow along
11016-554: The design or management is not of a quality conducive to best practice. The National Institute for Occupational Safety and Health issued an Alert, that presents five case reports documenting lead and noise exposures, and examines firing range operations, exposure assessment and control methods, existing regulations, and exposure standards and guidelines. More information about reducing occupational exposures at indoor firing ranges can be found at NIOSH Firing Range topic page In 2013, The American National Academy of Sciences published
11152-699: The development of self-governance, and the First Great Awakening , a series of Christian revivals , fueled colonial interest in religious liberty . For a century, the American colonists had been providing their own troops and materiel in conflicts with indigenous peoples allied with Britain's colonial rivals , especially France, and the Americans had begun to develop a sense of self-defense and self-reliance separate from Britain. The French and Indian War (1754–1763) took on new significance for all North American colonists after Parliament under William Pitt
11288-505: The discharging of firearms in indoor ranges can produce noise levels of over 140 dB sound pressure level . To combat this, it is commonly recommended that those inside the range "double-up" ear protection by using both earplugs and over-the-head earmuffs , and to protect range bystanders from sound exposure. Depending on the range, prescription eyeglasses may qualify as eye protection. Indoor ranges can be particularly unsafe, due to high lead exposures and increased noise exposures where
11424-414: The dispossession of native inhabitants . As more states were admitted , a North–South division over slavery led to the secession of the Confederate States of America , which fought states remaining in the Union in the 1861–1865 American Civil War . With the victory and preservation of the United States, slavery was abolished nationally . By 1900, the country had established itself as a great power ,
11560-564: The environment for labor unions to begin to flourish . This period eventually ended with the advent of the Progressive Era , which was characterized by significant reforms. Pro-American elements in Hawaii overthrew the Hawaiian monarchy ; the islands were annexed in 1898. That same year, Puerto Rico , the Philippines , and Guam were ceded to the U.S. by Spain after the latter's defeat in
11696-498: The exhaust air to the supply air system to conserve energy especially in extreme climates. The exhaust air is always filtered before being exhausted outside the building or recirculated to the supply system. Lighting in the range consists of control booth, uprange area, shooting booth, and downrange lighting systems. Control booth lighting is usually manually controlled and consists of general lighting and low-level lighting used during particular shooting conditions. Lighting uprange of
11832-538: The facility, others do not. Many jurisdictions have no such restrictions, regardless of whether one has a concealed carry license in jurisdictions where concealed carry is legal. Whether indoors or outdoors, all shooters are typically required to wear eye protection as well as hearing protection (ear muffs or earplugs) at all times when within the defined boundaries of the range. Employees and users are exposed to lead dust from bullets or cartridge primers, which can be inhaled or can settle on skin or clothing. Additionally,
11968-527: The federal government often applied policies of Indian removal or assimilation . The Trail of Tears (1830–1850) was a U.S. government policy that forcibly removed and displaced most Native Americans living east of the Mississippi River to lands far to the west. These and earlier organized displacements prompted a long series of American Indian Wars west of the Mississippi. The Republic of Texas
12104-408: The firing lanes and all shooters. Control stations are usually constructed of concrete blocks with bulletproof observation windows. Backstops and bullet traps are used to absorb the energy from the projectile and capture it to prevent overflight beyond the range area. Bullet traps come in a variety of designs and are usually constructed of impenetrable metal plates. The thickness of the plates and
12240-497: The firing line should be no more than 0.38 m/s (75 feet per minute, fpm) with a minimum acceptable flow of 0.25 m/s (50 fpm). Air is typically exhausted at or behind the bullet trap. Some firing ranges are designed to have multiple exhaust points downrange to maintain downrange flow and desired velocities at the firing line. The exhaust system should be designed to provide minimum duct air velocities of 12.70 – 15.24 m/s (2,500 – 3,000 fpm). The equipment and designs for
12376-521: The firing line. The illumination should be bright enough to prevent pupil dilation, which lowers the shooter's visual acuity. Emergency lights for egress, "Range in Use" signs at the entrance, and exit lights are among the other lighting options. During repairs or cleaning, the lighting behind the bullet trap should be at least 30 foot-candles. Although some ranges require all weapons to be discharged, securely encased, and/or trigger-locked before entering or exiting
12512-436: The firing range such as doors, windows, and ventilation registers. Shields are constructed of plate steel and plywood. The central controls for the firing range equipment, communication, lighting, and security are housed in control rooms or stations. The range master, who is in charge of range operation and management, operates the controls. The control station must provide the range master with an unobstructed line of sight of
12648-541: The firing range's distance. Airflow at the shooting line can be unstable if it is not uniformly dispersed, allowing lead and other pollutants to be brought back into the shooter's breathing region. Supply air should be added as high as possible in the range. Due to the health risks of accumulated lead dust and combustion products, cleaning floors and horizontal surfaces on a regular basis is recommended, either explicitly or as an implementation of more general health and safety regulations for handling lead. The level of cleaning
12784-590: The first nuclear weapons and used them against the Japanese cities of Hiroshima and Nagasaki in August 1945, ending the war. The United States was one of the " Four Policemen " who met to plan the post-war world , alongside the United Kingdom , Soviet Union , and China . The U.S. emerged relatively unscathed from the war, with even greater economic power and international political influence . After World War II,
12920-636: The first settlement of the Thirteen Colonies in Virginia in 1607. Clashes with the British Crown over taxation and political representation sparked the American Revolution , with the Second Continental Congress formally declaring independence on July 4, 1776. Following its victory in the 1775–1783 Revolutionary War , the country continued to expand westward across North America , resulting in
13056-428: The huge amount of air being exhausted. Single-speed fans, not multiple-speed fans, should be used. To demonstrate proper exhaust system function, indicators (static or velocity pressure) for flow monitoring are a good idea. Outside air must make up for the lost airflow. The distribution of supply air is crucial in assessing the ventilation system's effectiveness. Air supply systems are designed to spread air equally over
13192-463: The integration of Army National Guard units and personnel into the U.S. Army and (since 1947) the U.S. Air Force. There are about 18,000 U.S. police agencies from local to national level in the United States. Law in the United States is mainly enforced by local police departments and sheriff departments in their municipal or county jurisdictions. The state police departments have authority in their respective state , and federal agencies such as
13328-466: The lack of combustion gases negates the need for the high-performance ventilation systems required on conventional indoor ranges. Such arrangements are particularly common for major championships. Few locations could justify the expense of maintaining a permanent range with 80+ firing lanes, but such a range can be set up temporarily in large sports halls or exhibition centres. This is the approach taken by major European events such as InterShoot , RIAC and
13464-464: The lower power of most airguns, it is often possible to operate airgun ranges safely in multi-use and improvised spaces. This is particularly true of ISSF -oriented airguns which are limited to muzzle energies of 6ft-lb. Suitable ranges can be set up in sports halls or function rooms, using simple wooden backers, pellet catchers or lightweight ballistic curtains to protect the wall behind. Although safe handling practices for lead pellets must be followed,
13600-746: The majority of ranges are privately owned by civilians and sporting clubs and cater mostly to recreational shooters. Each facility is typically overseen by one or more supervisory personnel, known as a Range Officer (RO), or sometimes a range master in the United States . Supervisory personnel are responsible for ensuring that all safety rules and relevant laws are followed at all times. Shooting ranges can be indoor or outdoor, and may be restricted to certain types of firearm that can be used such as handguns or long guns , or they can specialize in certain Olympic disciplines such as trap / skeet shooting or 10 m air pistol / rifle . Most indoor ranges restrict
13736-500: The marksman or woman shooting from the one firing point. The most advanced rifle range of this design was constructed for the Commonwealth Games New Delhi 2010. The firing point cover can be as simple as a tent, to a frame with only a roof (to keep off rain or sunshine) to a substantial building with appropriate apertures to shoot through. Civilian targets are usually made of paper or a plastic coreflute, sometimes with
13872-400: The materials used depend on the velocity and energy levels of the projectiles to be fired in the range. The majority of modern bullet traps are made up of angled hardened steel plates that redirect bullets into other metal plates, releasing their energy. The plates must be resistant to penetration, abrasion, and metal fatigue. The traps direct the spent bullets to a collection area in front of
14008-477: The military draft (leading to the end of conscription in 1973) and wide opposition to U.S. intervention in Vietnam (with the U.S. totally withdrawing in 1975). A societal shift in the roles of women was significantly responsible for the large increase in female paid labor participation during the 1970s, and by 1985 the majority of American women aged 16 and older were employed. The late 1980s and early 1990s saw
14144-582: The more remote areas common to outdoor ranges. Outdoor ranges for ISSF and Olympic shooting events often have heavily sheltered firing points to protect athletes, spectators and media from inclement weather as well as housing the sophisticated electronic target systems. Several studies of outdoor ranges have shown that prolonged exposure to lead and noise can cause health problems, particularly among employees and instructors. Due to their larger area and more "open air" nature, outdoor ranges need less cleaning and maintenance than indoor ranges. However, despite
14280-612: The most attractive to the population are the most vulnerable. The U.S. is one of 17 megadiverse countries containing large numbers of endemic species : about 17,000 species of vascular plants occur in the contiguous United States and Alaska, and over 1,800 species of flowering plants are found in Hawaii, few of which occur on the mainland. The United States is home to 428 mammal species, 784 birds, 311 reptiles, 295 amphibians , and around 91,000 insect species. There are 63 national parks , and hundreds of other federally managed parks, forests, and wilderness areas , managed by
14416-642: The most violent, the California genocide of thousands of Native inhabitants, lasted into the early 1870s, just as additional western territories and states were created. During the colonial period, slavery had been legal in the American colonies , though the practice began to be significantly questioned during the American Revolution. States in the North enacted abolition laws , though support for slavery strengthened in Southern states , as inventions such as
14552-408: The policy of redlining later adopted by the federal Home Owners' Loan Corporation . An explosion of technological advancement accompanied by the exploitation of cheap immigrant labor led to rapid economic expansion during the late 19th and early 20th centuries , allowing the United States to outpace the economies of England, France, and Germany combined. This fostered the amassing of power by
14688-553: The primary colonial grievances was a denial of their rights as Englishmen , particularly the right to representation in the British government that taxed them . To demonstrate their dissatisfaction and resolve, the First Continental Congress met in 1774 and passed the Continental Association , a colonial boycott of British goods that proved effective. The British attempt to then disarm the colonists resulted in
14824-526: The productivity of the water. Attempts to remove it mechanically have failed, and even have caused more rapid spreading because every leaf or stem that floats away can colonize another part of the lake, according to lake manager, Brian Brinker. The herbicide has been classed by EPA as a low-risk chemical that does not require mandatory water testing before, during or after treatment, although OSU planned to do daily testing and for three days afterward. OSU will cease using water from Blackwell and switch to water from
14960-414: The projectile striking the range floor. The height is determined by range distance, as well as the approved firearms - a range for unsupported or pistol shooting may require a larger backstop than a range exclusively used or prone or supported rifle where a greater level of accuracy is expected. Outdoor shooting ranges sometimes have wind flags, positioned between the firing line (where the shooters are) and
15096-552: The range master to control the operation and movement of the targets through a central control station in the control booth. Some ranges provide local control modules that can be operated in the shooting booths. Many smaller clubs or competition ranges may not bother with target carriers as shooters fire in timed details anyway, and match targets will be collected for scoring at the end of each detail. Electronic scoring systems are increasingly common on such ranges, which eliminate paper targets and manual scoring. A critical component in
15232-482: The range. Some target-shooting ranges have separate facilities devoted to the use of higher-powered firearms such as .50 caliber . Outdoor ranges may be partially enclosed and so have some features in common with indoor ranges, for example the British Armed Forces barrack range has a roofed firing point and normally has 360° walls. As its name suggests, it is generally found in military bases rather than in
15368-565: The rights of African Americans . National infrastructure, including transcontinental telegraph and railroads , spurred growth in the American frontier . From 1865 through 1917 an unprecedented stream of immigrants arrived in the United States, including 24.4 million from Europe. Most came through the port of New York City , and New York City and other large cities on the East Coast became home to large Jewish , Irish , and Italian populations, while many Germans and Central Europeans moved to
15504-596: The rocky Great Basin and Chihuahua , Sonoran , and Mojave deserts. In the northwest corner of Arizona , carved by the Colorado River over millions of years, is the Grand Canyon , a steep-sided canyon and popular tourist destination known for its overwhelming visual size and intricate, colorful landscape. The Sierra Nevada and Cascade mountain ranges run close to the Pacific coast . The lowest and highest points in
15640-440: The same range is made available to both bow and gun shooters. However, there are many ranges that have been made available exclusively for archers , which lack the backstop to safely contain bullets The most popular types of archery ranges include 3-D ranges, field ranges and indoor ranges. The firing point normally is at a defined point on the ground, and on a civilian range will usually be level and flat. Outdoor ranges without
15776-563: The six service branches, which are made up of the U.S. Army , Marine Corps , Navy , Air Force , and Space Force . The Coast Guard is administered by the Department of Homeland Security in peacetime and can be transferred to the Department of the Navy in wartime. The United States spent $ 916 billion on its military in 2023, which is by far the largest amount of any country , making up 37% of global military spending and accounting for 3.4% of
15912-528: The sole authority of a state government. SDFs are authorized by state and federal law but are under the command of the state's governor . They are distinct from the state's National Guard units in that they cannot become federalized entities. A state's National Guard personnel, however, may be federalized under the National Defense Act Amendments of 1933 , which created the Guard and provides for
16048-543: The states are also represented by local elected governments , which are administrative divisions of the states. States are subdivided into counties or county equivalents , and further divided into municipalities . The District of Columbia is a federal district containing the U.S. capital, Washington, D.C. . The federal district is an administrative division of the federal government. Federally recognized tribes govern 326 Indian reservations . The United States has an established structure of foreign relations, and it has
16184-504: The structure and responsibilities of the national federal government and its relationship with the individual states. The U.S. Constitution is the world's oldest national constitution still in effect (from March 4, 1789). Composed of three branches, all headquartered in Washington, D.C., the federal government is the national government of the United States. It is regulated by a strong system of checks and balances . The three-branch system
16320-526: The supply and exhaust fans to be working should be designed to ensure proper operation. The range's exhaust system eliminates dirty air. The air velocity down the range is determined by the exhaust flow rate, but it has no bearing on the airflow pattern at the firing line. A minor negative pressure in the range can be maintained by exhausting 3 to 7% more air than is supplied. The negative pressure of -0.04 + 0.02 inches water gauge should be maintained for ranges. Energy recovery systems should be considered because of
16456-453: The targets. Shooters observe these flags to make an estimate of wind speed, which is then converted into lateral minute of angle point of aim corrections or, alternatively, windage holdoff corrections. The flag method is the most common method used to estimate wind speed. A flag blowing in the wind will naturally blow away from the flagpole, with the angle of the bottom of the flag to the flagpole increasing with increasing windspeed. To estimate
16592-437: The trap or, for high-energy projectiles, at the back of the trap. Many indoor ranges provide additional spaces such as a cleaning room for weapons, a classroom, restrooms (including shower facilities), office areas, lounge area, or storage and maintenance rooms. Passageways are used to physically isolate the firing range from the adjoining areas. Some shooting ranges are equipped with shooting booths to provide shooters with
16728-405: The use of high-power calibers , rifles , or fully automatic firearms . A shooting gallery is a recreational shooting facility with toy guns (usually very low-power airguns such as BB guns or airsoft guns , occasionally light guns or even water guns ), often located within amusement parks , arcades , carnivals or fairgrounds , to provide safe casual games and entertainment for
16864-489: The ventilation systems are varied, most firing ranges have one supply and one exhaust fan, however, some have multiple supply or exhaust fans. Very often, the air-flow rate required by the firing range and space constraints for the fans dictate the number and types of fans. Most firing ranges have systems that supply 100% outside air to the firing range and exhaust all of the air to outside the building; but, some firing range ventilation systems are designed to recirculate some of
17000-598: The visiting crowd by prizing customers with various dolls , toys and souvenirs as trophies . In urban areas, most shooting ranges will be at indoor facilities. Indoor ranges offer sheltering from inclement weather conditions and can be operated around the clock under a controlled environment. Outdoor shooting ranges are typically found away from populated areas due to concerns of safety , noise pollution and soil contamination . Indoor shooting ranges are usually constructed as standalone structures, though they may be housed in larger buildings in isolated areas such as
17136-436: The wind speed closest to the midpoint of the range has the greatest effect on the projectile. In addition, the wind at one part of the range will not always be the same at another part. Wind flags are not always actual flags, sometimes streamers are used, small triangle flags, or even pinwheels. Factors such as the range length and expected strength of the wind determine the best type of flag to use. When no flags are available,
17272-413: The wind speed in mph, the angle in degrees between the bottom of the flag to the flagpole at the mid-range position between the shooter and the target is divided by 4. For example, an angle of 60 degrees between the bottom of a flag and a flagpole would be estimated as a 15 miles per hour (24 km/h) windspeed. The clock method is then used to determine full value, half value, or no value corrections in
17408-565: The world's fourth-longest river system , runs predominantly north–south through the heart of the country. The flat and fertile prairie of the Great Plains stretches to the west, interrupted by a highland region in the southeast. The Rocky Mountains , west of the Great Plains, extend north to south across the country, peaking at over 14,000 feet (4,300 m) in Colorado . Farther west are
17544-567: The world's second-largest diplomatic corps as of 2024 . It is a permanent member of the United Nations Security Council , and home to the United Nations headquarters . The United States is a member of the G7 , G20 , and OECD intergovernmental organizations. Almost all countries have embassies and many have consulates (official representatives) in the country. Likewise, nearly all countries host formal diplomatic missions with
17680-509: The world's third-largest land area , largest exclusive economic zone , and third-largest population , exceeding 334 million. Its three largest metropolitan areas are New York , Los Angeles , and Chicago , and its three most populous states are California , Texas , and Florida . Paleo-Indians migrated across the Bering land bridge more than 12,000 years ago, and formed various civilizations and societies . British colonization led to
17816-444: The world's oldest surviving federation, and its presidential system of national government has been adopted, in whole or in part, by many newly independent states worldwide following their decolonization . It is a liberal representative democracy "in which majority rule is tempered by minority rights protected by law ". The Constitution of the United States serves as the country's supreme legal document , also establishing
17952-538: The world's tornadoes occur in the country , mainly in Tornado Alley . Overall, the United States receives more high-impact extreme weather incidents than any other country. Extreme weather became more frequent in the U.S. in the 21st century, with three times the number of reported heat waves as in the 1960s. In the American Southwest , droughts became more persistent and more severe. The regions considered as
18088-570: Was annexed in 1845, and the 1846 Oregon Treaty led to U.S. control of the present-day American Northwest . Victory in the Mexican–American War resulted in the 1848 Mexican Cession of California, Nevada, Utah, and much of present-day Colorado and the American Southwest . The California gold rush of 1848–1849 spurred a huge migration of white settlers to the Pacific coast, leading to even more confrontations with Native populations. One of
18224-754: Was adopted on July 4, 1776. The political values of the American Revolution included liberty , inalienable individual rights ; and the sovereignty of the people ; supporting republicanism and rejecting monarchy , aristocracy , and all hereditary political power; civic virtue ; and vilification of political corruption . The Founding Fathers of the United States , who included Washington, Jefferson, John Adams , Benjamin Franklin , Alexander Hamilton , John Jay , James Madison , Thomas Paine , and many others, were inspired by Greco-Roman , Renaissance , and Enlightenment philosophies and ideas. The Articles of Confederation were ratified in 1781 and established
18360-590: Was approved by the OSU regents in 2017. An environmental impact assessment (EIR) was underway in April 2018, and the Oklahoma Department of Wildlife Conservation is applying for construction funding from the Wildlife Conservation Program . The center would fence off a 358 acres (1,450,000 m) part of the Blackwell Lake recreational area to include an archery range , two rifle ranges ,
18496-565: Was elected the country's first president under the Constitution, and the Bill of Rights was adopted in 1791 to allay skeptics' concerns about the power of the more centralized government. His resignation as commander-in-chief after the Revolutionary War and his later refusal to run for a third term as the country's first president established a precedent for the supremacy of civil authority in
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