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63-910: The Iowa Army National Guard is a state agency of the State of Iowa , with significant funding from the Federal Government of the United States ; and a reserve component of the United States Army . It has dual Federal and State missions. It is empowered to function under control of the Governor, as a State asset in times of emergency or natural disaster, or if needed to carry out limited actions during non-emergency situations to include full scale Enforcement of martial law , when local law enforcement officials can no longer maintain civil control. The National Guard may also be called into federal service in response to
126-413: A state of emergency by the governor of the state in which they serve. Unlike Army Reserve members, National Guard members cannot be mobilized individually (except through voluntary transfers and Temporary Duty Assignments TDY ), but only as part of their respective units . However, there has been a significant number of individual activations to support military operations. The legality of this policy
189-733: A waterfall in Falls Park , which gives that city its name. Downstream of Sioux Falls and the community of Brandon , the Big Sioux defines the boundary between South Dakota and Iowa, flowing along the eastern borders of Lincoln and Union counties in South Dakota, and the western borders of Lyon , Sioux and Plymouth counties in Iowa, past the communities of Canton , Fairview , Hudson , Hawarden , North Sioux City , and Dakota Dunes in South Dakota and Beloit , Hawarden and Akron in Iowa. It joins
252-414: A 118-foot (36 m) spillway at the other. The diversion channel connects two ends of the Big Sioux's natural loop around central Sioux Falls in an effort to channel floodwater away from the city. The levees then act to contain any floodwater either remaining in the natural channel or originating from Skunk Creek (whose mouth is downriver of the diversion dam). Additionally, a greenway covers much of
315-664: A call by the President or Congress . Iowa National Guard units are trained and equipped as part of the United States National Guard. The same enlisted ranks , officer ranks and insignia are used. National Guardsmen are eligible to receive all United States military awards . The Iowa National Guard also bestows a number of state awards for local services rendered in or to the state of Iowa . National Guard units can be mobilized at any time by presidential order to supplement regular armed forces, and upon declaration of
378-463: A decline in air quality. Other factors negatively affecting Iowa's environment include the extensive use of older coal-fired power plants , fertilizer and pesticide runoff from crop production, and diminishment of the Jordan Aquifer . The 2020–2023 North American drought has affected Iowa particularly: As of January 2024, Iowa was in its 187th consecutive week of at least moderate drought ,
441-559: Is a tributary of the Missouri River in eastern South Dakota and northwestern Iowa in the United States . It flows generally southwardly for 419 mi (674 km), and its watershed is 9,006 sq mi (23,330 km ). The United States Board on Geographic Names settled on "Big Sioux River" as the stream's name in 1931. The river was named after the Lakota people which
504-595: Is a line along 43 degrees, 30 minutes north latitude. The southern border is the Des Moines River and a not-quite-straight line along approximately 40 degrees 35 minutes north, as decided by the U.S. Supreme Court in Missouri v. Iowa (1849) after a standoff between Missouri and Iowa known as the Honey War . Iowa is the only state whose east and west borders are formed almost entirely by rivers. Carter Lake, Iowa ,
567-643: Is a major issue within the National Guard. For much of the final decades of the twentieth century, National Guard personnel typically served " One weekend a month, two weeks a year ", with a portion working for the Guard in a full-time capacity. The current forces formation plans of the US Army call for the typical National Guard unit (or National Guardsman) to serve one year of active duty for every three years of service. More specifically, current Department of Defense policy
630-465: Is banned. Between 1955 and 1961, an extensive flood control system was constructed by the U.S. Army Corps of Engineers along the Big Sioux and some of its tributaries in Sioux Falls to protect the city from a 100-year flood event. Features of the system include 29 miles (47 km) of levees , a floodwall in downtown, and a 15,000 feet (4,600 m) diversion channel with a dam at one end and
693-574: Is categorized as the Central forest-grasslands transition ecoregion. The Northern, drier part of Iowa is categorized as part of the Central tall grasslands . There is a dearth of natural areas in Iowa; less than 1% of the tallgrass prairie that once covered most of Iowa remains intact; only about 5% of the state's prairie pothole wetlands remain, and most of the original forest has been lost. As of 2005 Iowa ranked 49th of U.S. states in public land holdings. Threatened or endangered animals in Iowa include
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#1732851266327756-573: Is derived from the Iowa River , and ultimately from the ethnonym of the indigenous Ioway people . The Ioway are a Chiwere -speaking Siouan Nation , who were once part of the Ho-Chunk Confederation that inhabited the area now corresponding to several Midwest states. The Ioway were one of the many Native American nations whose territory comprised the future state of Iowa before the time of European colonization. When Indigenous peoples of
819-587: Is notable for the Iowa Caucuses , an influential event in national politics, as well as its high levels of voter turnout and foundational leadership in civil rights including early adoption or support of black suffrage , women's rights , and same-sex marriage . Iowa's standard of living is ranked among the best states and it performs highly on metrics such as governance, education, infrastructure, and safety. Like many other states , Iowa takes its name from its predecessor, Iowa Territory , whose name in turn
882-520: Is part of the Driftless Area , consisting of steep hills and valleys which appear as mountainous. Several natural lakes exist, most notably Spirit Lake , West Okoboji Lake , and East Okoboji Lake in northwest Iowa ( see Iowa Great Lakes ). To the east lies Clear Lake . Man-made lakes include Lake Odessa, Saylorville Lake , Lake Red Rock , Coralville Lake , Lake MacBride, and Rathbun Lake. Before European settlement, 4 to 6 million acres of
945-428: Is that no Guardsman will be involuntarily activated for a total of more than 24 months (cumulative) in one six-year enlistment period (this policy is due to change 1 August 2007, the new policy states that soldiers will be given 24 months between deployments of no more than 24 months, individual states have differing policies). The Iowa Army National Guard was originally formed in 1838. The Militia Act of 1903 organized
1008-464: Is the brain drain , in which educated young adults leave the state in search of better prospects in higher education or employment. During the 1990s, Iowa had the second highest exodus rate for single, educated young adults, second only to North Dakota. The United States Census Bureau determined the population of Iowa was 3,190,369 on April 1, 2020, a 4.73% increase since the 2010 United States census . Big Sioux River The Big Sioux River
1071-575: Is the only city in the state located west of the Missouri River. Iowa has 99 counties , but 100 county seats because Lee County has two. The state capital, Des Moines , is in Polk County . Iowa's bedrock geology generally decreases in age from east to west. In northwest Iowa, Cretaceous bedrock can be 74 million years old; in eastern Iowa Cambrian bedrock dates to c. 500 million years ago. The oldest radiometrically dated bedrock in
1134-591: The 168th Infantry Regiment . Approximately 50 Iowa ARNG soldiers deployed to Iraq with the Combat Aviation Brigade, 36th Infantry Division in September 2006. Units of the Iowa Army National Guard formed since 1917 include: State of Iowa Iowa ( / ˈ aɪ . ə w ə / EYE -ə-wə ) is a state in the upper Midwestern region of the United States . It borders
1197-575: The 1900 census , though Iowa now has a predominantly urban population. The Iowa Economic Development Authority, created in 2011 has replaced the Iowa Department of Economic Development and its annual reports are a source of economic information. Iowa is bordered by the Mississippi River on the east along with the Missouri River and the Big Sioux River on the west. The northern boundary
1260-584: The French and Indian War , transferred ownership to their ally, Spain. Spain practiced very loose control over the Iowa region, granting trading licenses to French and British traders, who established trading posts along the Mississippi and Des Moines Rivers . Iowa was part of a territory known as La Louisiane or Louisiana , and European traders were interested in lead and furs obtained by Indigenous people. The Sauk and Meskwaki effectively controlled trade on
1323-808: The Indiana Territory ) that surrendered much of Illinois to the U.S. enraged many Sauk and led to the 1832 Black Hawk War . The Sauk and Meskwaki were forced to sell some of their land in the Mississippi Valley to the U.S. in 1832 in the Black Hawk Purchase Treaty and sold their remaining land in Iowa in 1842, most of them moving to a reservation in Kansas. In 1837, some the Potawatomi from Illinois were resettled in Iowa, while many Meskwaki later returned to Iowa and settled near Tama, Iowa ;
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#17328512663271386-577: The Late Archaic period , Native Americans in Iowa began utilizing domesticated plants. The subsequent Woodland period saw an increased reliance on agriculture and social complexity, with increased use of mounds, ceramics, and specialized subsistence. During the Late Prehistoric period (beginning about AD 900) increased use of maize and social changes led to social flourishing and nucleated settlements. The arrival of European trade goods and diseases in
1449-760: The Meskwaki Settlement remains to this day. In 1856 the Iowa Legislature passed an unprecedented act allowing the Meskwaki to purchase the land. However, in contrast to the unprecedented act of the Iowa Legislature, the United States Federal Government, through the use of Treaties, forced the Ho-Chunk from Iowa in 1848, and forced the Dakota from Iowa by 1858. Western Iowa around modern Council Bluffs
1512-506: The Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north. Iowa is the 26th largest in total area and the 31st most populous of the 50 U.S. states , with a population of 3.19 million. The state's capital , most populous city , and largest metropolitan area fully located within
1575-427: The Mississippi River , averages 52 °F (11 °C). Snowfall is common, with Des Moines getting about 26 days of snowfall a year, and other places, such as Shenandoah getting about 11 days of snowfall in a year. Spring ushers in the beginning of the severe weather season. As of 2008, Iowa averaged about 50 days of thunderstorm activity per year. As of 2015, the 30-year annual average of tornadoes in Iowa
1638-587: The U.S. Congress established the Territory of Iowa . President Martin Van Buren appointed Robert Lucas governor of the territory, which at the time had 22 counties and a population of 23,242. Almost immediately after achieving territorial status, a clamor arose for statehood. On December 28, 1846, Iowa became the 29th state in the Union when President James K. Polk signed Iowa's admission bill into law. Once admitted to
1701-629: The War of 1812 , and Fort Shelby in Prairie du Chien, Wisconsin , also fell to the British. Black Hawk took part in the siege of Fort Madison. Another small military outpost was established along the Mississippi River in present-day Bellevue . This poorly situated stockade was similarly attacked by hundreds of Indigenous people in 1813, but was successfully defended and later abandoned until settlers returned to
1764-584: The interior least tern , piping plover , Indiana bat , pallid sturgeon , the Iowa Pleistocene land snail , Higgins' eye pearly mussel , and the Topeka shiner . Endangered or threatened plants include western prairie fringed orchid , eastern prairie fringed orchid , Mead's milkweed , prairie bush clover , and northern wild monkshood . The explosion in the number of high-density livestock facilities in Iowa has led to increased rural water contamination and
1827-665: The 18th and early 19th centuries, Iowa was a part of French Louisiana and Spanish Louisiana ; its state flag is patterned after the flag of France . After the Louisiana Purchase , pioneers laid the foundation for an agriculture-based economy in the heart of the Corn Belt . In the latter half of the 20th century, Iowa's agricultural economy began to transition to a diversified economy of advanced manufacturing, processing, financial services , information technology , biotechnology , and green energy production. Politically, Iowa
1890-663: The Americas first arrived in what is now Iowa more than 13,000 years ago, they were hunters and gatherers living in a Pleistocene glacial landscape. By the time European explorers and traders visited Iowa, Native Americans were largely settled farmers with complex economic, social, and political systems. This transformation happened gradually. During the Archaic period (10,500 to 2,800 years ago), Native Americans adapted to local environments and ecosystems, slowly becoming more sedentary as populations increased. More than 3,000 years ago, during
1953-709: The Army of the Potomac in Virginia and fought under Union General Philip Sheridan in the Shenandoah Valley . Many died and were buried at Andersonville. They marched on General Nathaniel Banks ' ill-starred expedition to the Red River. Twenty-seven Iowans have been awarded the Medal of Honor , the highest military decoration awarded by the United States government, which was first awarded in
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2016-518: The Big Sioux in Plymouth County, Iowa. Other creek tributaries include Peg Munky Run , North Deer, Sixmile , Skunk , Split Rock , Beaver , Brule , and Pipestone . The Big Sioux is South Dakota's most populated river basin. Agriculture is the primary use of land along most of the river's course. To comply with the Clean Water Act , the state monitors water quality of its rivers. Most of
2079-444: The Big Sioux north of Sioux Falls was scored well in 2012. Portions near Lake Kampeska and between Willow and Stray Horse Creeks ( Codington and Hamlin counties) exceeded federally allowable levels of E. coli and fecal coliform bacteria. However, the Big Sioux south of Sioux Falls is much more polluted with E. coli , fecal coliform, and suspended solids . Several portions heavily restrict fishing or human contact, and swimming
2142-503: The Civil War. Iowa had several brigadier generals and four major generals— Grenville Mellen Dodge , Samuel R. Curtis , Francis J. Herron , and Frederick Steele —and saw many of its generals go on to state and national prominence following the war. Following the Civil War, Iowa's population continued to grow dramatically, from 674,913 people in 1860 to 1,624,615 in 1880. The American Civil War briefly brought higher profits. In 1917,
2205-470: The Depression. The crisis spurred a major, decade-long population decline. After bottoming out in the 1980s, Iowa's economy began to reduce its dependence on agriculture. By the early 21st century, it was characterized by a mix of manufacturing, biotechnology, finance and insurance services, and government services. The population of Iowa has increased at a slower rate than the U.S. as a whole since at least
2268-510: The Indochina War. An exception was required for this resettlement as State Dept policy at the time forbid resettlement of large groups of refugees in concentrated communities; an exception was ultimately granted and 1200 Tai Dam were resettled in Iowa. Since then Iowa has accepted thousands of refugees from Laos, Cambodia, Thailand, Bhutan, and Burma. The farm crisis of the 1980s caused a major recession in Iowa, causing poverty not seen since
2331-572: The Louisiana Purchase into two parts—the Territory of Orleans and the District of Louisiana, with present-day Iowa falling in the latter. The Indiana Territory , created in 1800, exercised jurisdiction over this portion of the District; William Henry Harrison was its first governor. Much of Iowa was mapped by Zebulon Pike in 1805, but it was not until the construction of Fort Madison in 1808 that
2394-464: The Mississippi in the late 18th century and early 19th century. Among the early traders on the Mississippi were Julien Dubuque , Robert de la Salle , and Paul Marin . Along the Missouri River at least five French and English trading houses were built before 1808. In 1800, Napoleon Bonaparte took control of Louisiana from Spain in a treaty . After the 1803 Louisiana Purchase , Congress divided
2457-766: The Missouri River from the north at Sioux City, Iowa . The Big Sioux River, at the USGS station in Sioux City, Iowa , has a mean annual discharge of approximately 3,793 cubic feet per second. The Big Sioux River collects the Rock River from the northeast in Sioux County, Iowa. A minor headwaters tributary of the Big Sioux in Grant County, South Dakota, is known as the Indian River . Broken Kettle Creek has its confluence with
2520-476: The Protohistoric period led to dramatic population shifts and economic and social upheaval, with the arrival of new tribes and early European explorers and traders. There were numerous native American tribes living in Iowa at the time of early European exploration. Tribes which were probably descendants of the prehistoric Oneota include the Dakota , Ho-Chunk , Ioway , and Otoe . Tribes which arrived in Iowa in
2583-506: The U.S. established tenuous military control over the region. Fort Madison was built to control trade and establish U.S. dominance over the Upper Mississippi, but it was poorly designed and disliked by the Sauk and Meskwaki, many of whom allied with the British, who had not abandoned claims to the territory. Fort Madison was defeated by British-supported Indigenous people in 1813 during
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2646-403: The Union, the state's boundary issues resolved, and most of its land purchased from Natives, Iowa set its direction to development and organized campaigns for settlers and investors, boasting the young frontier state's rich farmlands, fine citizens, free and open society, and good government. Iowa has a long tradition of state and county fairs. The first and second Iowa State Fairs were held in
2709-455: The United States entered World War I and farmers as well as all Iowans experienced a wartime economy. For farmers, the change was significant. Since the beginning of the war in 1914, Iowa farmers had experienced economic prosperity, which lasted until the end of the war. In the economic sector, Iowa also has undergone considerable change. Beginning with the first industries developed in the 1830s, which were mainly for processing materials grown in
2772-513: The area in the mid-1830s. After the war, the U.S. re-established control of the region through the construction of Fort Armstrong , Fort Snelling in Minnesota , and Fort Atkinson in Nebraska . The United States encouraged settlement of the east side of the Mississippi and removal of Indians to the west. A disputed 1804 treaty between Quashquame and William Henry Harrison (then governor of
2835-550: The area, Iowa has experienced a gradual increase in the number of business and manufacturing operations. The transition from an agricultural economy to a mixed economy happened slowly. The Great Depression and World War II accelerated the shift away from smallholder farming to larger farms, and began a trend of urbanization. The period after World War II witnessed a particular increase in manufacturing operations. In 1975, Governor Robert D. Ray petitioned President Ford to allow Iowa to accept and resettle Tai Dam refugees fleeing
2898-628: The armed forces, over one-sixth of whom were killed before the Confederates surrendered at Appomattox . Most fought in the great campaigns in the Mississippi Valley and in the South . Iowa troops fought at Wilson's Creek in Missouri , Pea Ridge in Arkansas , Forts Henry and Donelson, Shiloh, Chattanooga, Chickamauga, Missionary Ridge, and Rossville Gap as well as Vicksburg, Iuka, and Corinth. They served with
2961-437: The expense of more rural counties. Iowa, in common with other Midwestern states (especially Kansas , Nebraska , North Dakota , and South Dakota ), is feeling the brunt of rural flight , although Iowa has been gaining population since approximately 1990. Some smaller communities, such as Denison and Storm Lake , have mitigated this population loss through gains in immigrant laborers. Another demographic problem for Iowa
3024-574: The fairgrounds were being used as an army supply depot; and in 2020 due to the COVID-19 pandemic in the United States . Iowa supported the Union during the Civil War , voting heavily for Abraham Lincoln , though there was an antiwar " Copperhead " movement in the state, caused partially by a drop in crop prices caused by the war. There were no battles in the state, although the Battle of Athens , Missouri, 1861,
3087-488: The late prehistoric or protohistoric periods include the Illiniwek , Meskwaki , Omaha , and Sauk . The first known European explorers to document Iowa were Jacques Marquette and Louis Jolliet who traveled the Mississippi River in 1673 documenting several Indigenous villages on the Iowa side. The area of Iowa was claimed for France and remained a French territory until 1763. The French, before their impending defeat in
3150-403: The longest stretch since the 1950s. 96% of areas are affected by drought. Iowa has a humid continental climate throughout the state ( Köppen climate classification Dfa ) with extremes of both heat and cold. The average annual temperature at Des Moines is 50 °F (10 °C); for some locations in the north, such as Mason City, the figure is about 45 °F (7 °C), while Keokuk , on
3213-643: The more developed eastern part of the state at Fairfield . The first fair was held October 25–27, 1854, at a cost of around $ 323. Thereafter, the fair moved to locations closer to the center of the state and in 1886 found a permanent home in Des Moines. The State Fair has been held annually since then, except for a few exceptions: 1898 due to the Spanish–American War and the World's Fair being held in nearby Omaha, Nebraska ; from 1942 to 1945, due to World War II , as
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#17328512663273276-402: The northwest of the state receiving less than 28 inches (71 cm). The pattern of precipitation across Iowa is seasonal with more rain falling in the summer months. Virtually statewide, the driest month is January or February, and the wettest month is June owing to frequent showers and thunderstorms some of which produce hail, damaging winds or tornadoes. In Des Moines, roughly in the center of
3339-473: The river's floodplain in southern and eastern Sioux Falls, further mitigating any property damage from high water. The Big Sioux River experienced record-breaking flooding during the 2019 Midwestern U.S. floods . The Big Sioux River Flood Information System was used to model flooding during the March 2019 bomb cyclone event. The river overflowed its banks between September 12–15, 2019, flooding three blocks of Dell Rapids, South Dakota , and damaging up to
3402-469: The state is Des Moines . A portion of the larger Omaha, Nebraska, metropolitan area extends into three counties of southwest Iowa. Other metropolitan statistical areas in Iowa include Iowa City , Cedar Rapids , Waterloo-Cedar Falls , Ames , Dubuque , Sioux City , and the Iowa portion of the Quad Cities . Iowa is home to 940 small towns, though its population is increasingly urbanized as small communities and rural areas decline in population. During
3465-405: The state is the 2.9 billion year old Otter Creek Layered Mafic Complex. Precambrian rock is exposed only in the northwest of the state. Iowa can be divided into eight landforms based on glaciation , soils , topography , and river drainage. Loess hills lie along the western border of the state, some of which are several hundred feet thick. Northeast Iowa along the Upper Mississippi River
3528-532: The state was covered with wetlands, about 95% of these wetlands have been drained. Iowa's natural vegetation is tallgrass prairie and savanna in upland areas, with dense forest and wetlands in flood plains and protected river valleys, and pothole wetlands in northern prairie areas. Most of Iowa is used for agriculture; crops cover 60% of the state, grasslands (mostly pasture and hay with some prairie and wetland) cover 30%, and forests cover 7%; urban areas and water cover another 1% each. The southern part of Iowa
3591-583: The state, over two-thirds of the 34.72 inches (88.2 cm) of rain falls from April through September, and about half the average annual precipitation falls from May through August peaking in June. Iowa's population is more urban than rural, with 61 percent living in urban areas in 2000, a trend that began in the early 20th century. Urban counties in Iowa grew 8.5% from 2000 to 2008, while rural counties declined by 4.2%. The shift from rural to urban has caused population increases in more urbanized counties such as Dallas , Johnson , Linn , Polk , and Scott , at
3654-406: The various state militias into the present National Guard system. The 133d Infantry Regiment, formerly the 2nd Iowa Volunteer Infantry, served as part of the 67th Infantry Brigade, 34th Division, during World War I. The 67th Infantry Brigade was disbanded in February 1919, but formed again in 1921, still as part of the 34th Division. From 1921 to 1942, it was part of the Guard in Iowa, comprising
3717-558: Was 47. In 2008 , twelve people were killed by tornadoes in Iowa, making it the deadliest year since 1968 and also the second most tornadoes in a year with 105, matching the total from 2001. Iowa summers are known for heat and humidity, with daytime temperatures sometimes near 90 °F (32 °C) and occasionally exceeding 100 °F (38 °C). Average winters in the state have been known to drop well below freezing, even dropping below −18 °F (−28 °C). As of 2018, Iowa's all-time hottest temperature of 118 °F (48 °C)
3780-531: Was fought just across the Des Moines River from Croton, Iowa , and shots from the battle landed in Iowa. Iowa sent large supplies of food to the armies and the eastern cities. Much of Iowa's support for the Union can be attributed to Samuel J. Kirkwood , its first wartime governor. Of a total population of 675,000, about 116,000 men were subjected to military duty. Iowa contributed proportionately more soldiers to Civil War military service than did any other state, north or south, sending more than 75,000 volunteers to
3843-452: Was known by them as Tehankasandata, or Thick Wooded River. The Big Sioux River rises in Roberts County, South Dakota on a low plateau known as the Coteau des Prairies and flows generally southwardly through Grant , Codington , Hamlin , Brookings , Moody , and Minnehaha counties, past the communities of Watertown , Castlewood , Bruce , Flandreau , Egan , Trent , Dell Rapids , and Baltic to Sioux Falls , where it passes over
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#17328512663273906-409: Was recorded at Keokuk on July 20, 1934, during a nationwide heat wave; as of 2014, the all-time lowest temperature of −47 °F (−44 °C) was recorded in Washta on January 12, 1912. Iowa has had a relatively smooth gradient of varying precipitation across the state; from 1961 to 1990, areas in the southeast of the state received an average of over 38 inches (97 cm) of rain annually, and
3969-468: Was used as an Indian Reservation for members of the Council of Three Fires . The first American settlers officially moved to Iowa in June 1833. Primarily, they were families from Ohio , Pennsylvania , New York , Indiana , Kentucky , and Virginia who settled along the western banks of the Mississippi River , founding the modern day cities of Dubuque and Bellevue near the site of Julien Dubuque's 1785–1810 lead mining operation. On July 4, 1838,
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