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134-599: AGIC hosts an annual training symposium bringing together GIS professionals statewide to share their best practices. "The AZGEO Clearinghouse is an initiative of the Arizona Geographic Information Council. AZGEO is designed to provide GIS users with links to Internet map services, FGDC compliant metadata, and geospatial data downloads. Data include GIS layers for administrative boundaries, demographic, environmental factors, hydrology, imagery, indices, mining, natural features, transportation and more." AGIC

268-537: A gunman shot congresswoman Gabby Giffords and 18 others at a gathering in Tucson. Giffords was critically wounded. The incident sparked national attention regarding incendiary political rhetoric. Three ships named USS Arizona have been christened in honor of the state, although only USS Arizona (BB-39) was so named after statehood was achieved. Arizona is in the Southwestern United States as one of

402-521: A Japanese invasion of the U.S. West Coast (which in fact materialized in the Aleutian Islands Campaign in June 1942), from 1942 to 1945, persons of Japanese descent were forced to reside in internment camps built in the interior of the country. Many lost their homes and businesses. The camps were abolished after World War   II. The Phoenix-area POW camp site for Germans was purchased after

536-518: A Spanish Franciscan , became the first European to contact Native Americans. He explored parts of the present state and made contact with native inhabitants, probably the Sobaipuri . The expedition of Spanish explorer Coronado entered the area in 1540–1542 during its search for Cíbola . Few Spanish settlers migrated to Arizona. One of the first settlers in Arizona was José Romo de Vivar . Father Kino

670-568: A channel over millions of years, and is about 277 miles (446 km) long, ranges in width from 4 to 18 miles (6 to 29 km) and attains a depth of more than 1 mile (1.6 km). Nearly two   billion years of the Earth 's history have been exposed as the Colorado River and its tributaries cut through layer after layer of sediment as the Colorado Plateau uplifted. Arizona is home to one of

804-730: A divine hero to the Pima people of the Gila River Valley . It was probably considered – and rejected – for its sentimental value before Congress settled on the name "Arizona".) Brigham Young , leader of the Church of Jesus Christ of Latter-day Saints in Salt Lake City in Utah , sent Mormons to Arizona in the mid- to late 19th century. They founded Mesa , Snowflake , Heber , Safford , and other towns. They also settled in

938-403: A dry heat from 90 to 120 °F (32 to 49 °C), with occasional high temperatures exceeding 125 °F (52 °C) having been observed in the desert area. Arizona's all-time record high is 128 °F (53 °C) recorded at Lake Havasu City on June 29, 1994, and July 5, 2007; the all-time record low of −40 °F (−40 °C) was recorded at Hawley Lake on January 7, 1971. Due to

1072-531: A large oasis at the western end of the El Paso-Tucson corridor. The region between the two cities is a major transportation trunk with settlements serving both highway and railway needs. There are also large mining operations, ranches, and agricultural oases. Both El Paso and Tucson have large military installations nearby; Fort Bliss and White Sands Missile Range north of El Paso in New Mexico, and, near Tucson,

1206-573: A private sector organization sits on the Board. Arizona Department of Commerce This is an accepted version of this page Arizona ( / ˌ ær ɪ ˈ z oʊ n ə / ARR -iz- OH -nə ; Navajo : Hoozdo Hahoodzo [hoː˥z̥to˩ ha˩hoː˩tso˩] ; O'odham : Alĭ ṣonak [ˈaɭi̥ ˈʂɔnak] ) is a state in the Southwestern region of the United States , sharing

1340-528: A settlement in Arizona in 1599, but were turned back by inclement weather. In 1610, Santa Fe was founded, making it the oldest capital in United States. In 1664 Juan Archuleta led an expedition into what is now Colorado, becoming the first European to enter. A second Spanish expedition was led into Colorado by Juan Ulibarrí in 1706, during which he claimed the Colorado territory for Spain. From 1687 to 1691

1474-454: A sub-region of the South , which some consider southwestern in the general framework of the original application, meaning the "Western South." This is an area containing the basic elements of Southern history , culture , politics , religion , and linguistic and settlement patterns, yet blended with traits of the frontier West. While this particular Southwest is notably different in many ways from

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1608-589: A third of Colorado, and small portions of Kansas, Oklahoma, and Wyoming. Texas current borders were set in the Compromise of 1850 , where Texas ceded land to the federal government in exchange for $ 10 million, which would go to paying off the debt Texas had accumulated in its war with Mexico. Following the Mexican Cession, the lands of what had been the Mexican territory of Alta California were in flux: portions of what

1742-598: A total metropolitan population of just over 4.7   million. The average high temperature in July, 106 °F (41 °C), is one of the highest of any metropolitan area in the United States, offset by an average January high temperature of 67 °F (19 °C), the basis of its winter appeal. Tucson , with a metro population of just over one   million, is the state's second-largest city. Located in Pima County , approximately 110 miles (180 km) southeast of Phoenix, it

1876-600: Is Phoenix , which is the most populous state capital in the United States. Arizona is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912. Historically part of the territory of Alta California and Nuevo México in New Spain , it became part of independent Mexico in 1821. After being defeated in the Mexican–American War , Mexico ceded much of this territory to

2010-791: Is bordered to the south by the Mogollon Rim and the Sonoran Desert, to the west by the Mojave Desert, and to the east by the Rocky Mountains , the Rio Grande Rift valley, and the Llano Estacado . The Plateau is characterized by a series of plateaus and mesas, interspersed with canyons. The most dramatic example is the Grand Canyon . But that is one of many dramatic vistas included within

2144-1412: Is composed of an Executive Management Board and standing technical committees to advise the Board on technical issues and to assist the Board in the implementation of AGIC programs. Member organizations are: Arizona Department of Administration Arizona Department of Commerce Arizona Department of Economic Security Arizona Department of Education Arizona Department of Environmental Quality Arizona Department of Health Services Arizona Department of Public Safety Arizona Department of Revenue Arizona Department of Transportation Arizona Department of Water Resources Arizona Game and Fish Department Arizona Geological Survey Arizona State Cartographer's Office Arizona State Land Department Arizona State Parks Arizona State University Northern Arizona University University of Arizona Bureau of Indian Affairs Bureau of Land Management Bureau of Reclamation National Geodetic Survey Natural Resources Conservation Service U.S. Forest Service U.S. Geological Survey Arizona Association of Counties League of Arizona Cities and Towns Arizona Professional Land Surveyors Association Maricopa Association of Governments Northern Arizona Geographic Information Forum Pima Association of Governments Yuma Regional Geographic Information System Additionally, one representative from

2278-795: Is considered as relatively vulnerable to climate change, which can make six of Arizona`s 15 counties uninhabitable for humans by the years 2040-2060. This was the cautionary warning made by a December 2020 study released by ProPublica and Rhodium Group. Phoenix , in Maricopa County , is Arizona's capital and largest city. Other prominent cities in the Phoenix metro area include Mesa (Arizona's third largest city), Chandler (Arizona's fourth largest city), Glendale , Peoria , Buckeye , Sun City , Sun City West , Fountain Hills , Surprise , Gilbert , El Mirage , Avondale , Tempe , Tolleson and Scottsdale , with

2412-596: Is from the Mojave Desert in California in the west (117° west longitude) to Carlsbad, New Mexico , in the east (104° west longitude); another says that it extends from the Mexico–United States border in the south to the southern areas of Colorado, Utah, and Nevada in the north (39° north latitude). In another definition, the core Southwestern U.S. includes only the states of Arizona and New Mexico; others focus on

2546-486: Is home to a diverse population. About one-quarter of the state is made up of Indian reservations that serve as the home of 27 federally recognized Native American tribes , including the Navajo Nation , the largest in the state and the country, with more than 300,000 citizens. Since the 1980s, the proportion of Hispanics has grown significantly owing to migration from Mexico and Central America. A substantial portion of

2680-545: Is in Arizona. The Mogollon Rim ( / ˌmoʊ gəˈyoʊn / ), a 1,998-foot (609 m) escarpment , cuts across the state's central section and marks the southwestern edge of the Colorado Plateau. In 2002, this was an area of the Rodeo–Chediski Fire , the worst fire in state history until 2011. Located in northern Arizona, the Grand Canyon is a colorful, deep, steep-sided gorge, carved by the Colorado River . The canyon

2814-555: Is less well known for its pine-covered north-central portion of the high country of the Colorado Plateau (see Arizona Mountains forests ). Like other states of the Southwest United States, Arizona is marked by high mountains, the Colorado plateau, and mesas. Despite the state's aridity, 27% of Arizona is forest, a percentage comparable to modern-day Romania or Greece. The world's largest stand of ponderosa pine trees

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2948-529: Is now New Mexico were claimed, but never controlled, by Texas. With the Compromise of 1850, the states of Texas and California were created (Texas as a slave state, and California as a free state), as well as the Utah Territory and New Mexico Territory . The New Mexico Territory consisted of most of Arizona and New Mexico (excluding a strip along their southern borders), a small section of southern Colorado, and

3082-641: Is one of the Seven Natural Wonders of the World and is largely contained in the Grand Canyon National Park  – one of the first national parks in the United States. President Theodore Roosevelt was a major proponent of designating the Grand Canyon area as a National Park, often visiting to hunt mountain lion and enjoy the scenery. The canyon was created by the Colorado River cutting

3216-526: Is one of the hottest cities in the United States, with an average July high of 107 °F (42 °C). For comparison, the same month's average in Death Valley is 115 °F (46 °C). The city features sunny days about 90% of the year. The Yuma Metropolitan Statistical Area has a population of 160,000. Yuma attracts many winter visitors from all over the United States. Southwestern United States The Southwestern United States , also known as

3350-621: Is the saguaro cactus , which is unique to the desert. It is bounded on the northwest by the Mojave Desert, to the north by the Colorado Plateau and to the east by the Arizona Mountains forests and the Chihuahuan Desert. Aside from the trademark saguaro, the desert has the most diverse plant life of any desert in the world, and includes many other species of cacti, including the organ-pipe, senita, prickly pear, barrel, fishhook, hedgehog, cholla, silver dollar, and jojoba. The portion of

3484-405: Is the smallest, driest and hottest desert within the United States. The Mojave gets less than 6 in (150 mm) of rain annually, and its elevation ranges from 3,000 to 6,000 feet (900 to 1,800 meters) above sea level. The most prolific vegetation is the tall Joshua tree , which grow as tall as 40 ft (12 m), and are thought to live almost 1000 years. Other major vegetation includes

3618-617: The American Southwest or simply the Southwest , is a geographic and cultural region of the United States that includes Arizona and New Mexico , along with adjacent portions of California , Colorado , Nevada , Oklahoma , Texas , and Utah . The largest cities by metropolitan area are Phoenix , Las Vegas , El Paso , Albuquerque , and Tucson . Before 1848, in the historical region of Santa Fe de Nuevo México as well as parts of Alta California and Coahuila y Tejas , settlement

3752-690: The Ancestral Pueblo people , the Hohokam , and the Mogollon , all of which existed among other surrounding cultures including the Patayan . Maize began to be cultivated in the region sometime during the early first millennium BC, but it took several hundred years for the native cultures to be dependent on it as a food source. As their dependence on maize grew, Pre-Columbian Indians began developing irrigation systems around 600 CE . According to archeological finds,

3886-531: The Arizona Legislature enacted the Stupid Motorist Law . It is rare for tornadoes or hurricanes to occur in Arizona. Arizona's northern third is a plateau at significantly higher altitudes than the lower desert, and has an appreciably cooler climate, with cold winters and mild summers, though the climate remains semiarid to arid. Extremely low temperatures are not unknown; cold air systems from

4020-599: The Arizona Organic Act , which officially created the U.S. Territory of Arizona , splitting the New Mexico Territory at the 107th meridian. Utah, as shown above, evolved out of the Utah Territory, as pieces of the original territory created in 1850 were carved out: parts were ceded to Nevada, Wyoming, and Colorado in 1861; another section to Nevada in 1862; and the final section to Nevada in 1866. In 1890,

4154-538: The Davis-Monthan Air Force Base . About 70 miles (110 km) to the southeast are the research facilities at Fort Huachuca . These military installations form a kind of hinterland around the El Paso-Tucson region, and are served by scientific and residential communities such as Sierra Vista , Las Cruces , and Alamogordo . El Paso's influence extends north into the Mesilla Valley , and southeast along

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4288-523: The Four Corners region of the western United States with Colorado , New Mexico , and Utah . Its other neighboring states are Nevada to the northwest and California to the west. It also shares an international border with the Mexican states of Sonora and Baja California to the south and southwest. It is the 6th-largest and the 14th-most-populous of the 50 states. Its capital and largest city

4422-479: The Four Corners states. Arizona is the sixth largest state by area , ranked after New Mexico and before Nevada . Of the state's 113,998 square miles (295,000 km ), approximately 15% is privately owned. The remaining area is public forest and parkland, state trust land and Native American reservations. There are 24 National Park Service maintained sites in Arizona, including the three national parks of Grand Canyon National Park , Saguaro National Park , and

4556-579: The Gadsden Purchase in 1853. In 1851, San Luis became the first European settlement in what is now Colorado. Of the states of which at least a portion make up the Southwest, Texas was the first to achieve statehood. On December 29, 1845, the Republic of Texas was annexed, bypassing the status of becoming a territory, and immediately became a state. Initially, its borders included parts of what would become several other states: almost half of New Mexico,

4690-454: The Kingdom of Spain and its Spanish Empire in 1821, what is now Arizona became part of its Territory of Nueva California , ("New California"), also known as Alta California ("Upper California"). Descendants of ethnic Spanish and mestizo settlers from the colonial years still lived in the area at the time of the arrival of later European-American migrants from the United States. During

4824-485: The Mexican–American War (1847–1848), the U.S. Army occupied the national capital of Mexico City and pursued its claim to much of northern Mexico, including what later became Arizona Territory in 1863 and later the State of Arizona in 1912. The Treaty of Guadalupe Hidalgo (1848) specified that, in addition to language and cultural rights of the existing inhabitants of former Mexican citizens being considered as inviolable,

4958-658: The Narváez expedition (1528–36) who had crossed eastern Texas on their way to Mexico City, led an expedition to discover the Seven Golden Cities of Cíbola. The 1582–3 expedition of Antonio de Espejo explored New Mexico and eastern Arizona; and this led to Juan de Oñate 's establishment of the Spanish province of Santa Fe de Nuevo México in 1598, with a capital founded near Ohkay Oweenge Pueblo , which he called San Juan de los Caballeros. Oñate's party also attempted to establish

5092-512: The O'odham name alĭ ṣonak , meaning ' small spring ' . Initially this term was applied by Spanish colonists only to an area near the silver mining camp of Planchas de Plata, Sonora . To the European settlers, the O'odham pronunciation sounded like Arissona . The area is still known as alĭ ṣonak in the O'odham language. Another possible origin is the Basque phrase haritz ona '

5226-473: The Petrified Forest National Park . Arizona is well known for its desert Basin and Range region in the state's southern portions, which is rich in a landscape of xerophyte plants such as the cactus . This region's topography was shaped by prehistoric volcanism , followed by the cooling-off and related subsidence . Its climate has exceptionally hot summers and mild winters. The state

5360-597: The Phoenix Valley (or "Valley of the Sun"), Tempe , Prescott , and other areas. The Mormons settled what became northern Arizona and northern New Mexico. At the time these areas were in a part of the former New Mexico Territory . During the nineteenth century, a series of gold and silver rushes occurred in the territory, the best known being the 1870s stampede to the silver bonanzas of Tombstone, Arizona , in southeast Arizona, also known for its legendary outlaws and lawmen. By

5494-518: The Phoenix metropolitan area . The city of Phoenix is the largest urban center, and located in the approximate center of the area that includes Tempe , Mesa , and many others. Meinig calls the third subregion "El Paso, Tucson, and the Southern Borderlands." While El Paso and Tucson are distinctly different cities, they serve as anchor points to the hinterland between them. Tucson occupies

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5628-502: The San Francisco Mountains ); as well as large, deep canyons , with much more moderate summer temperatures and significant winter snowfalls. There are ski resorts in the areas of Flagstaff , Sunrise , and Tucson . In addition to the internationally known Grand Canyon National Park , which is one of the world's seven natural wonders , there are several national forests , national parks , and national monuments . Arizona

5762-536: The San Luis Valley of southern Colorado to south of Socorro and including the Sandia-Manzano Mountains , with an east–west breadth in the north stretching from the upper Canadian River to the upper San Juan River . The area around Albuquerque is sometimes called Central New Mexico . "Central Arizona" is a vast metropolitan area spread across one contiguous sprawling oasis, essentially equivalent to

5896-628: The Territory of New Mexico from 1850 until the southern part of that region seceded from the Union to form the Territory of Arizona . This newly established territory was formally organized by the federal government of the Confederate States on Saturday, January 18, 1862, when President Jefferson Davis approved and signed An Act to Organize the Territory of Arizona , marking the first official use of

6030-537: The 1930s and 1940s, many definitions of the Southwest included all or part of Texas, Oklahoma, New Mexico, Arizona, California, Colorado, and Utah. As time has gone on, the definition of the Southwest has become more solidified and more compact. For example, in 1948 the National Geographic Society defined the American Southwest as all of California, Nevada, Utah, Arizona, Colorado, and New Mexico, and

6164-477: The American Southwest as parts of Arizona, Colorado, Kansas, New Mexico, Oklahoma, Texas, and Utah. From this perspective, almost all of the region's physiographical traits, geological formations, and weather are contained within a box between 26° and 38° northern latitude, and 98° 30' and 124° western longitude. When looking at the fauna of the region, there is a broader definition of the American Southwest. The Southwestern Center for Herpetological Research defines

6298-463: The Ancestral Pueblo people, also known as the "Anasazi" (although that term is viewed by modern Pueblo people as derogatory and is becoming more and more disused), began settling in the area in approximately 1500 BC. Eventually, they would spread throughout the entire northern section of the Southwest. This culture would go through several different eras lasting from approximately 1500 BC through

6432-650: The Ancestral Puebloans, while the Akimel O'odham and Tohono O'odham claim descent from Hohokam. The area previously occupied by the Mogollon was taken over by an unrelated tribe, the Apache . While it is unclear whether any of the modern Indian tribes are descended from the Mogollon, some archeologists and historians believe that they mixed with Ancestral Puebloans and became part of the modern Hopi and Zuni tribes. Prior to

6566-545: The Canyonlands section just to its north; the Navajo section is bordered to the south by the Grand Canyon section, which of course is dominated by the Grand Canyon; and the southeasternmost portion of the Plateau is the Datil section, consisting of valleys, mesas, and volcanic formations. Albuquerque is the most populous city often considered at the edge of this portion contained in the Southwest region, but Santa Fe, New Mexico and Flagstaff, Arizona, are also significant population centers. Phoenix , Tucson, and Las Vegas dominate

6700-541: The City of Tucson was founded when the Presidio San Augustin del Tucson was created, relocating the presidio from Tubac. In 1776, two Franciscan priests, Francisco Atanasio Domínguez and Silvestre Vélez de Escalante, led an expedition from Santa Fe heading to California. After passing through Colorado, they became the first Europeans to travel into what is now Utah. Their journey was halted by bad weather in October, and they turned back, heading south into Arizona before turning east back to Santa Fe. In 1804 Spain divided

6834-411: The Exploration of the Columbia River of the West and Its Tributaries , which was later republished as The Exploration of the Colorado River and Its Canyons . In 1877 silver was discovered in southeastern Arizona. The notorious mining town of Tombstone, Arizona was born to service the miners. The town would become immortalized as the scene of what is considered the greatest gunfight in the history of

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6968-423: The Jesuit priest Eusebio Kino established several missions in the Santa Cruz River valley; and Kino further explored southern and central Arizona in 1694, during which he discovered the ruins of Casa Grande. Beginning in 1732, Spanish settlers began to enter the region, and the Spanish started bestowing land grants in Mexico and the Southwest US. In 1751, the O'odham rebelled against the Spanish incursions, but

7102-437: The LDS church issued the 1890 Manifesto , which officially banned polygamy for members of the church. It was the last roadblock for Utah entering the Union, and on January 4, 1896, Utah was officially granted statehood, becoming the 45th state. In 1869, John Wesley Powell led a 3-month expedition which explored the Grand Canyon and the Colorado River. In 1875, he would publish a book describing his explorations, Report of

7236-601: The Mojave Desert. Bordered on the south by the Sonoran Desert and the east by the Colorado Plateau, its range within the region makes up the southeast tip of Nevada, the southwestern corner of Utah and the northwestern corner of Arizona. In terms of topography, the Mojave is very similar to the Great Basin Desert, which lies just to its north. Within the region, Las Vegas is the most populous city; other significant population centers include Laughlin and Pahrump in Nevada, St. George and Hurricane in Utah, and Lake Havasu City , Kingman , and Bullhead City in Arizona. The Mojave

7370-434: The Mojave and Colorado deserts in California. Other individuals who focus on Southwest studies who favored a more limited extent of the area to center on Arizona and New Mexico, with small parts of surrounding areas, include Erna Fergusson , Charles Lummis (who claimed to have coined the term, the Southwest), and cultural geographer Raymond Gastil , and ethnologist Miguel León-Portilla . Geographer D. W. Meinig defines

7504-429: The Native American (especially Apache , Pueblo , and Navajo ), Hispano , Mexican American , and frontier cowboy . The geography of the region is mainly made up of four features: the Mojave , Sonoran , and Chihuahuan Deserts , and the Colorado Plateau ; although there are other geographical features as well, such as a portion of the Great Basin Desert . The deserts dominate the southern and western reaches of

7638-427: The Old West, the Gunfight at the O.K. Corral . Copper was also discovered in 1877, near Bisbee and Jerome in Arizona, which became an important component of the economy of the Southwest. Production began in 1880 and was made more profitable by the expansion of the railroad throughout the territory during the 1880s. The early 1880s also saw the completion of the second transcontinental railroad, which ran through

7772-601: The Pacific Ocean during the winter and a monsoon in the summer. The monsoon season occurs toward the end of summer. In July or August, the dewpoint rises dramatically for a brief period. During this time, the air contains large amounts of water vapor . Dewpoints as high as 81   °F (27   °C) have been recorded during the Phoenix monsoon season. This hot moisture brings lightning , thunderstorms , wind, and torrential, if usually brief, downpours. These downpours often cause flash floods , which can turn deadly. In an attempt to deter drivers from crossing flooding streams,

7906-406: The Parry saltbush and the Mojave sage, both only found in the Mojave, as well as the creosote bush. The Colorado Plateau varies from the large stands of forests in the west, including the largest stand of ponderosa pine trees in the world, to the Mesas to the east. Although not called a desert, the Colorado Plateau is mostly made up of high desert. Within the Southwest U.S. region, the Colorado

8040-471: The Pecos, north of the [Mexican] Border, south of the Mesa Verde and the Grand Canyon, and east of the mountains which wall off Southern California and make it a land in itself." Texas has long been the focal point of this dichotomy, and is often considered, as such, the core area of "the South's Southwest." While the Trans-Pecos area is generally acknowledged as part of the desert Southwest , most of Texas and large parts of Oklahoma are often placed into

8174-433: The Phoenix metropolitan area. Situated in pine tree forests at an elevation of about 5,500 feet (1,700 m), Prescott enjoys a much cooler climate than Phoenix, with average summer highs around 88 °F (31 °C) and winter temperatures averaging 50 °F (10 °C). Yuma is the center of the fourth-largest metropolitan area in Arizona. Located in Yuma County , it is near the borders of California and Mexico. It

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8308-466: The Plateau, which includes spectacular lava formations, "painted" deserts, sand dunes, and badlands. One of the most distinctive features of the Plateau is its longevity, having come into existence at least 500 million years ago. The Plateau can be divided into six sections, three of which fall into the Southwest region. Beginning with the Navajo section forming the northern boundary of the Southwestern United States, which has shallower canyons than those in

8442-427: The Provincia de las Californias, creating the province Alta California , which consisted primarily of what would become California, Nevada, Arizona, Colorado, Utah and New Mexico. In 1821 Mexico achieved its independence from Spain and shortly after, in 1824, developed its constitution , which established the Alta California territory, which was the same geographic area as the earlier Spanish province. In 1825, Arizona

8576-404: The Rio Grande into the Trans-Pecos region of Texas. The fourth subregion Meinig calls the "Northern Corridor and Navajolands," a major highway and railway trunk which connects Albuquerque and Flagstaff . Just north of the transportation trunk are large blocks of American Indian land. As the US expanded westward , the country's western border also shifted westward, and consequently, so did

8710-411: The Sonora Desert which lies in the Southwestern United States is the most populated area within the region. Six of the top ten major population centers of the region are found within its borders: Phoenix, Tucson , Mesa , Chandler , Glendale , and Scottsdale , all in Arizona. Also within its borders are Yuma and Prescott, Arizona . The most northwest portion of the American Southwest is covered by

8844-405: The Sonoran Desert to the west. The Chihuahuan Desert spreads across the southeastern portion of the region, covering from southeastern Arizona, across southern New Mexico, and the portion of western Texas included in the Southwest. While it is the second largest desert in the United States, only a third of the desert is within the United States, with the rest in Mexico. El Paso and Albuquerque are

8978-410: The Southwest as being only the states of Arizona, New Mexico, with parts of California, Nevada, Texas, and Utah; although they include all of those six states in their map of the region, solely for ease of defining the border. Lawrence Clark Powell, a major bibliographer whose emphasis is on the Southwest, defined the American Southwest in a 1958 Arizona Highways article as, "the lands lying west of

9112-411: The Southwest became embroiled in the Mexican–American War , partly as a result of the United States' annexation of Texas. On August 18, 1846, an American force captured Santa Fe, New Mexico. On December 16 of the same year, American forces captured Tucson, Arizona, marking the end of hostilities in the Southwest United States. When the war ended with the Treaty of Guadalupe Hidalgo on February 2, 1848,

9246-407: The Southwest began to decline for unknown reasons, although severe drought and encroachment from other peoples have been postulated. By the end of the 15th century, all three cultures had disappeared. The modern Puebloan tribes of the Isleta , Sandia , Cochiti , Kewa , Santa Ana , Taos , Jemez , Acoma , Laguna , and Zia , as well as the Hopi and Zuni peoples , trace their ancestry back to

9380-494: The Southwest in a very similar fashion to Reed: the portion of New Mexico west of the Llano Estacado and the portion of Arizona east of the Mojave - Sonoran Desert and south of the "canyon lands" and also including the El Paso district of western Texas and the southernmost part of Colorado. Meinig breaks the Southwest down into four distinct subregions. He calls the first subregion " Northern New Mexico ," and describes it as focused on Albuquerque and Santa Fe . It extends from

9514-494: The Southwest. Around AD 1100 their culture began to develop in the Four Corners area of the region. The Navajos migrated from northwestern Canada and eastern Alaska , where the majority of Athabaskan speakers reside. The Ute were found over most of modern-day Utah and Colorado, as well as northern New Mexico and Arizona. The Paiutes roamed an area which covered over 45,000 square miles of southern Nevada and California, south-central Utah, and northern Arizona. The Hopi settled

9648-500: The Spanish term Árida Zona ' Arid Zone ' is considered a case of folk etymology . For thousands of years before the modern era, Arizona was home to many ancient Native American civilizations. Hohokam , Mogollon , and Ancestral Puebloan cultures were among those that flourished throughout the state. Many of their pueblos, cliffside dwellings, rock paintings and other prehistoric treasures have survived and attract thousands of tourists each year. In 1539, Marcos de Niza ,

9782-446: The United States gained control of all of present-day California, Nevada and Utah, as well as the majority of Arizona, and parts of New Mexico and Colorado (the rest of present-day Colorado, and most of New Mexico had been gained by the United States in their annexation of the Republic of Texas). The final portion of the Southwestern United States came about through the acquisition of the southernmost parts of Arizona and New Mexico through

9916-403: The United States in 1848, where the area became part of the territory of New Mexico . The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase . Southern Arizona is known for its desert climate, with very hot summers and mild winters. Northern Arizona features forests of pine, Douglas fir , and spruce trees; the Colorado Plateau ; mountain ranges (such as

10050-667: The ancestral Puebloans. The modern-day Zuni established a culture along the Zuni River in far-eastern Arizona and western New Mexico. Both major tribes of the O'odham tribe settled in the southern and central Arizona, in the lands once controlled by their ancestors, the Hohokam. The first European intrusion into the region came from the south. In 1539, a Jesuit Franciscan named Marcos de Niza led an expedition from Mexico City which passed through eastern Arizona. The following year Francisco Vázquez de Coronado , based on reports from survivors of

10184-613: The area, namely the Animas , San Andres , and Doña Ana Mountains in New Mexico; and the Franklin , Hueco , and Davis Mountains in Texas. It also reaches up into the foothills of the higher ranges such as the Black Range and Oscura Mountains in New Mexico. High above the desert, these forest-covered and sometimes snow-capped mountains form sky islands , with radically different flora and fauna than

10318-514: The area, while the plateau (which is largely made up of high desert) is the main feature north of the Mogollon Rim . The two major rivers of the region are the Colorado River , running in the northern and western areas, and the Rio Grande , running in the east, north to south. Formed approximately 8000 years ago, the Chihuahuan Desert is a relatively dry desert, although it is slightly wetter than

10452-481: The area. The Chihuahuan Desert is considered the "most biologically diverse desert in the Western Hemisphere and one of the most diverse in the world," and includes more species of cacti than any other desert in the world. The most prolific plants in this region are agave , yucca and creosote bushes , in addition to the ubiquitous presence of various cacti species. When people think of the desert southwest,

10586-498: The arrival of Europeans, the Southwestern United States was inhabited by a very large population of American Indian tribes. The area once occupied by the ancestral Puebloans became inhabited by several American Indian tribes, the most populous of which were the Navajo , Ute , Southern Paiute , and Hopi. The Navajo, along with the Hopi, were the earliest of the modern Indian tribes to develop in

10720-600: The chance to take part in the flavor and activities of the "Old West". Several upscale hotels and resorts opened during this period, some of which are still top tourist draws. They include the Arizona Biltmore Hotel in central Phoenix (opened 1929) and the Wigwam Resort on the west side of the Phoenix area (opened 1936). Arizona was the site of German prisoner of war camps during World War   II and Japanese American internment camps . Because of wartime fears of

10854-536: The city in the Tucson Mountains , is the site of the world's largest collection of Saguaro cacti. The Prescott metropolitan area includes the cities of Prescott, Cottonwood , Camp Verde and many other towns in the 8,123 square miles (21,000 km ) of Yavapai County area. With 212,635 residents, this cluster of towns is the state's third largest metropolitan area. The city of Prescott (population 41,528) lies approximately 100 miles (160 km) northwest of

10988-570: The command of Lt. Colonel John Robert Baylor forced the surrender of the small Union garrison stationed at Fort Fillmore , near Mesilla, New Mexico . On August 1, 1861, Baylor declared the creation of the Arizona Territory , and claimed it for the Confederacy, with Mesilla as its capital. The territory, which had been formed by the portion of the existing New Mexico Territory below the 34th parallel, became official on February 14, 1862. Nevada

11122-530: The establishment of Alta Ski Area , Utah's skiing began to be developed. Due to the ski conditions in the state, during WWII, the 10th Mountain Division established Camp Hale in Colorado to train elite ski troops. While this article deals with the core definition for the American Southwest, there are many others. The various definitions can be broken down into four main categories: Historical/Archeological; Geological/Topographical; Ecological; and Cultural. In

11256-404: The good oak ' , as there were numerous Basque sheepherders in the area. A native-born Mexican of Basque ancestry established the ranchería ( small rural settlement ) of Arizona between 1734 and 1736 in the current Mexican state of Sonora . It became notable after a significant discovery of silver there around 1737. The misconception that the state's name purportedly originated from

11390-595: The heart of the Southwest, called the "Santa Fe Route." It ran from Chicago, down through Topeka, then further south to Albuquerque, before heading almost due west through northern Arizona to Los Angeles. The repeal of the Sherman Silver Purchase Act in 1893 led to the decline of the silver mining industry in the region. In 1901, the Santa Fe Railroad reached the South Rim of the Grand Canyon, opening

11524-539: The land within the old Spanish and Mexican borders of the Nuevo México Province or the later American New Mexico Territory . Distinct elements of the Western lifestyle thrive in the region, such as Western wear and Southwestern cuisines , including Native American , New Mexican , and Tex-Mex , or various genres of Western music like Indigenous , New Mexico , and Tejano music styles. Likewise with

11658-699: The lands of the central and western portions of northern Arizona. Their village of Oraibi , settled in approximately AD 1100, is, along with Acoma Sky City in New Mexico, one of the oldest continuously occupied settlements in the United States. The Mogollon area became occupied by the Apaches and the Zuni. The Apache migrated into the American Southwest from the northern areas of North America at some point between 1200 and 1500. They settled throughout New Mexico, eastern Arizona, northern Mexico, parts of western Texas, and southern Colorado. The Zuni count their direct ancestry through

11792-462: The landscape of the Sonoran Desert is what mostly comes to mind. The Sonoran Desert makes up the southwestern portion of the Southwest; most of the desert lies in Mexico, but its United States component lies on the southeastern border of California, and the western 2/3 of southern Arizona. Rainfall averages between 4 and 12 in (100 and 300 mm) per year, and the desert's most widely known inhabitant

11926-463: The last engagement in the American Indian Wars , which lasted from 1775 to 1918. U.S. soldiers stationed on the border confronted Yaqui Indians who were using Arizona as a base to raid the nearby Mexican settlements, as part of their wars against Mexico. Arizona became a U.S. state on February 14, 1912, coinciding with Valentine's Day . Arizona was the 48th state admitted to the U.S. and

12060-591: The last of the contiguous states to be admitted. Cotton farming and copper mining, two of Arizona's most important statewide industries, suffered heavily during the Great Depression . But during the 1920s and even the 1930s, tourism began to develop as the important Arizonan industry it is today. Dude ranches, such as the K L Bar and Remuda in Wickenburg, along with the Flying V and Tanque Verde in Tucson, gave tourists

12194-407: The last of the 48 contiguous United States on February 14, 1912. The 1930s saw the beginning of the ski industry in the Southwest. Resorts were established in Colorado in areas such as Estes Park , Gunnison , and on Loveland Pass . New Mexico's oldest ski area is Sandia Peak Ski Area at the eastern edge of Albuquerque , which opened to skiers in 1936. At the end of the decade, in 1939, with

12328-456: The late 1880s, copper production eclipsed the precious metals with the rise of copper camps like Bisbee, Arizona , and Jerome, Arizona . The boom and bust economy of mining also left hundreds of ghost towns across the territory, but copper mining continued to prosper with the territory producing more copper than any other state by 1907, which earned Arizona the nickname "the Copper State" at

12462-418: The level of the surrounding plain. The crater itself is nearly a mile (1.6 kilometers) wide and 570 feet (170 m) deep. Arizona is one of two U.S. states, along with Hawaii, that does not observe Daylight Saving Time , though the large Navajo Nation in the state's northeastern region does. Due to its large area and variations in elevation, the state has a wide variety of localized climate conditions. In

12596-694: The location of the Southwestern and Northwestern United States . In the early years of the United States, newly colonized lands lying immediately west of the Appalachian Mountains were detached from North Carolina and given the name Southwest Territory . During the decades that followed, the region known as "the Southwestern United States" covered much of the Deep South east of the Mississippi River. However, as territories and eventual states to

12730-518: The lower elevations the climate is primarily desert, with mild winters and extremely hot summers. Typically, from late fall to early spring, the weather is mild, averaging a minimum of 60 °F (16 °C). November through February are the coldest months, with temperatures typically ranging from 40 to 75 °F (4 to 24 °C), with occasional frosts. About midway through February, the temperatures start to rise, with warm days, and cool, breezy nights. The summer months of June through September bring

12864-645: The major US cities in this desert, with other smaller cities being Las Cruces and Roswell in New Mexico and Willcox in Arizona. The elevation in the Chihuahuan varies from about 1,750 to 6,000 feet (500 to 1,800 meters), as there are several larger mountain ranges, such as the Organ Mountains , the Guadalupe Mountains , and the Chiracahua Mountains , plus many smaller mountain ranges contained in

12998-689: The middle of the 15th century AD: the Basketmaker I , II , and III phases followed by the Pueblo I , II , III , and IV . As the Puebloans transitioned from a nomadic lifestyle to one based on both dry land and irrigated agriculture, their first domiciles were pithouses. The Mogollon culture developed later than the Puebloan, arising in the eastern area of the region at around 300 BC. Their range would eventually extend deep into what would become Mexico, and dominate

13132-474: The most well-preserved meteorite impact sites in the world. Created around 50,000 years ago, the Barringer Meteorite Crater (better known simply as " Meteor Crater ") is a gigantic hole in the middle of the high plains of the Colorado Plateau, about 25 miles (40 km) west of Winslow . A rim of smashed and jumbled boulders, some of them the size of small houses, rises 150 feet (46 m) above

13266-720: The name "Territory of Arizona". The Southern territory supplied the Confederate government with men, horses, and equipment. Formed in 1862, Arizona scout companies served with the Confederate States Army during the American Civil War . Arizona has the westernmost military engagement on record during the Civil War with the Battle of Picacho Pass (1862). The Federal government declared a new U.S. Arizona Territory, consisting of

13400-573: The needs of senior citizens and attracted many retirees who wanted to escape the harsh winters of the Midwest and the Northeast . Sun City , established by developer Del Webb and opened in 1960, was one of the first such communities. Green Valley , south of Tucson, was another such community, designed as a retirement subdivision for Arizona's teachers. Many senior citizens from across the United States and Canada come to Arizona each winter and stay only during

13534-442: The northern states and Canada occasionally push into the state, bringing temperatures below 0 °F (−18 °C) to the state's northern parts. Indicative of the variation in climate, Arizona is the state which has both the metropolitan area with the most days over 100 °F (38 °C) ( Phoenix ), and the metropolitan area in the lower 48 states with the most days with a low temperature below freezing ( Flagstaff ). Arizona

13668-542: The population are followers of the Roman Catholic Church and the Church of Jesus Christ of Latter-day Saints . Arizona's population and economy have grown dramatically since the 1950s because of inward migration, and the state is now a major hub of the Sun Belt . Cities such as Phoenix and Tucson have developed large, sprawling suburban areas. Many large companies, such as PetSmart and Circle K , have headquarters in

13802-496: The primarily dry climate, large diurnal temperature variations occur in less-developed areas of the desert above 2,500 ft (760 m). The swings can be as large as 83   °F (46   °C) in the summer months. In the state's urban centers, the effects of local warming result in much higher measured night-time lows than in the recent past. Arizona has an average annual rainfall of 12.7 in (323 mm), which comes during two rainy seasons, with cold fronts coming from

13936-527: The revolt was unsuccessful. In fact, it had the exact opposite effect, for the result of the rebellion was the establishment of the presidio at Tubac , the first permanent European settlement in Arizona. In 1768, the Spanish created the Provincia de las Californias , which included California and the Southwest US. Over approximately the next 50 years, the Spanish continued to explore the Southwest, and in 1776

14070-577: The several armies fighting in Mexico. Only two significant engagements took place on U.S. soil between U.S. and Mexican forces: Pancho Villa 's 1916 Columbus Raid in New Mexico and the Battle of Ambos Nogales in 1918 in Arizona. After Mexican federal troops fired on U.S. soldiers, the American garrison launched an assault into Nogales, Mexico . The Mexicans eventually surrendered after both sides sustained heavy casualties. A few months earlier, just west of Nogales, an Indian War battle had occurred, considered

14204-402: The sought-after Southwestern architectural styles in the region inspired by blending Pueblo and Territorial styles, with Mediterranean Revival , Spanish Colonial architecture , Mission Revival architecture , Pueblo Deco , and Ranch-style houses in the form of the amalgamated Pueblo Revival and Territorial Revival architectures. This is due to the region's caballero heritage of

14338-460: The south the 37th parallel . In 1862 Nevada's eastern border shifted to the 38th meridian west from Washington , and finally to its current position at the 37th meridian west from Washington in 1866. The boundary modification in 1866 also included adding the southern triangular tip of the present-day state, taken from the Arizona Territory. From July 24–27, 1861 a Confederate force under

14472-402: The southeastern portion of the Southwest. Their settlements would evolve over time from pit-dwellings through pueblos and finally also incorporating cliff-dwellings. The Hohokam were the last of these ancestral cultures to develop, somewhere around AD 1, but they would grow to be the most populous of the three by AD 1300, despite being the smallest of the three in terms of area, covering most of

14606-487: The southernmost sections of Oregon, Idaho, and Wyoming, as well as parts of southwest Nebraska, western Kansas, Oklahoma, and Texas. By 1977, the Society's definition had narrowed to only the four states of Utah, Arizona, Colorado, and New Mexico; and by 1982 the portion of the Southwest in the United States, as defined by the Society, had shrunk to Arizona and New Mexico, with the southernmost strip of Utah and Colorado, as well as

14740-450: The southwest portion. Beginning in approximately AD 600, the Hohokam began to develop an extensive series of irrigation canals; of the three major cultures in the Southwest, only the Ancestral Puebloans of the Chaco culture and the Hohokam developed irrigation as a means of watering their agriculture. Not long after the Hohokam reached the height of their culture, all three major cultures in

14874-465: The state, and Arizona is home to major universities, including the University of Arizona , Arizona State University , and Northern Arizona University . The state is known for a history of conservative politicians such as Barry Goldwater and John McCain , though it has become a swing state in recent years. The state's name appears to originate from an earlier Spanish name, Arizonac , derived from

15008-504: The state. After Maricopa County did not allow them to register to vote, in 1948 veteran Frank Harrison and Harry Austin, of the Mojave-Apache Tribe at Fort McDowell Indian Reservation , brought a legal suit, Harrison and Austin v. Laveen , to challenge this exclusion. The Arizona Supreme Court ruled in their favor. Arizona's population grew tremendously with residential and business development after World War   II, aided by

15142-516: The state. In 2004, voters passed Proposition 200 , requiring proof of citizenship to register to vote. The Supreme Court of the United States struck this restriction down in 2013. In 2010, Arizona enacted SB 1070 which required all immigrants to carry immigration papers at all times, but the Supreme Court also invalidated parts of this law in Arizona v. United States in 2012. On January 8, 2011,

15276-486: The sum of $ 15   million in compensation (equivalent to $ 528,230,769.23 in 2023) be paid to the Republic of Mexico. In 1853, the U.S. acquired the land south below the Gila River from Mexico in the Gadsden Purchase along the southern border area as encompassing the best future southern route for a transcontinental railway. What is now the state of Arizona was administered by the United States government as part of

15410-591: The surrounding desert below. The sky islands also supply the surrounding desert foothills with flowing water during the spring runoff and after the summer storms of the New Mexican monsoon season . The Chihuahuan is a "rain shadow" desert, formed between two mountain ranges (the Sierra Madre Occidental on the west and the Sierra Madre Oriental on the east) which block oceanic precipitation from reaching

15544-452: The territory gained and lost political influence with the growth and development of the territory. Although names including "Gadsonia", "Pimeria", "Montezuma" and "Arizuma" had been considered for the territory, when 16th President Abraham Lincoln signed the final bill, it read "Arizona", and that name was adopted. ( Montezuma was not derived from the Aztec emperor, but was the sacred name of

15678-528: The time of statehood. During the first years of statehood the industry experienced growing pains and labor disputes with the Bisbee Deportation of 1917 the result of a copper miners' strike. During the Mexican Revolution from 1910 to 1920, several battles were fought in the Mexican towns just across the border from Arizona settlements. Throughout the revolution, many Arizonans enlisted in one of

15812-519: The very southern tip of Nevada; while the Utah Territory consisted of Utah, most of Nevada, and portions of Wyoming and Colorado. The New Mexico Territory was expanded along its southern extent, to its current border, with the signing of the Gadsden Purchase Treaty on December 30, 1853, which was ratified by the U.S. Congress, with some slight alterations, in April 1854. The Colorado Territory

15946-474: The very southernmost part of Utah, southwestern Colorado, the very tip of west Texas, and triangle formed by the southern tip of Nevada. This will be the defined scope that is used in this article unless otherwise specified in a particular area. Parts of the other states make up the various areas that can be included in the Southwest, depending on the source. The Learning Center of the American Southwest (LCAS) does not rely on current state boundaries, and defines

16080-711: The war by the Maytag family (of major home appliance fame). It was developed as the site of the Phoenix Zoo . A Japanese-American internment camp was on Mount Lemmon , just outside the state's southeastern city of Tucson. Another POW camp was near the Gila River in eastern Yuma County . Arizona was also home to the Phoenix Indian School , one of several federal Indian boarding schools designed to assimilate Native American children into mainstream European-American culture. Children were often enrolled in these schools against

16214-448: The way for a tourism boom, a trend led by restaurant and hotel entrepreneur Fred Harvey . The last two territories within the Southwest to achieve statehood were New Mexico and Arizona. By 1863, with the splitting off of the Arizona Territory, New Mexico reached its modern borders. They became states within forty days of one another. On January 6, 1912, New Mexico became the 47th state in the Union. Arizona would shortly follow, becoming

16348-564: The west to Las Vegas, New Mexico in the East. Reed's definition is roughly equivalent to the western half of the Learning Center of the American Southwest's definition, leaving out any portion of Kansas and Oklahoma, and much of Texas, as well as the eastern half of New Mexico. Since this article is about the Southwestern United States, the areas of Sonora and Chihuahua in Mexico will be excluded. The portion left includes Arizona and western New Mexico,

16482-477: The west were added after the Mexican–American War , the geographical "Southwest" expanded, and the relationship of these new acquisitions to the South itself became "increasingly unclear." However, archeologist, Erik Reed, gives a description which is the most widely accepted as defining the American Southwest, which runs from Durango, Colorado in the north, to Durango, Mexico, in the south, and from Las Vegas, Nevada in

16616-473: The western half of earlier New Mexico Territory, in Washington, D.C. , on February 24, 1863. These new boundaries would later form the basis of the state. The first territorial capital, Prescott, was founded in 1864 following a gold rush to central Arizona. The capital was later moved to Tucson, back to Prescott, and then to its final location in Phoenix in a series of controversial moves as different regions of

16750-506: The westernmost metropolitan areas in the Southwest, while Albuquerque - Santa Fe and El Paso - Las Cruces dominate the easternmost metropolitan areas. Human history in the Southwest begins with the arrival of the Clovis culture , a Paleo-Indian hunter-gatherer culture which arrived sometime around 9000 BC. This culture remained in the area for several millennia. At some point they were replaced by three great Pre-Columbian Indian cultures:

16884-619: The widespread use of air conditioning , which made the intensely hot summers more comfortable. According to the Arizona Blue Book (published by the Arizona Secretary of State 's office each year), the state population in 1910 was 294,353. By 1970, it was 1,752,122. The percentage growth each decade averaged about 20% in the earlier decades, and about 60% each decade thereafter. In the 1960s, retirement communities were developed. These age-restricted subdivisions catered exclusively to

17018-515: The winter months; they are referred to as snowbirds . In March 2000, Arizona was the site of the first legally binding election ever held over the internet to nominate a candidate for public office. In the 2000 Arizona Democratic Primary, under worldwide attention, Al Gore defeated Bill Bradley . Voter turnout in this state primary increased more than 500% over the 1996 primary. In the 21st century, Arizona has frequently garnered national attention for its efforts to quell illegal immigration into

17152-483: The wishes of their parents and families. Attempts to suppress native identities included forcing the children to cut their hair, to take and use English names, to speak only English, and to practice Christianity rather than their native religions. Numerous Native Americans from Arizona fought for the United States during World War   II. Their experiences resulted in a rising activism in the postwar years to achieve better treatment and civil rights after their return to

17286-423: Was admitted to the Union on October 31, 1864, becoming the 36th state. This was followed by the admittance to the Union of Colorado, which became the 38th state on August 1, 1876. Confederate Arizona was short-lived, however. By May 1862, Confederate forces had been driven out of the region by union troops. That same month a bill was introduced into the U.S. Congress, and on February 24, 1863 Abraham Lincoln signed

17420-459: Was almost non-existent outside of Nuevo México's Pueblos and Spanish or Mexican municipalities . Much of the area had been a part of New Spain and Mexico until the United States acquired the area through the Treaty of Guadalupe Hidalgo in 1848 and the smaller Gadsden Purchase in 1854. While the region's boundaries are not officially defined, there have been attempts to do so. One such definition

17554-464: Was incorporated in 1877, making it the oldest incorporated city in Arizona. It is home to the University of Arizona . Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. It has an average July temperature of 100   °F (38   °C) and winter temperatures averaging 65   °F (18   °C). Saguaro National Park , just west of

17688-480: Was organized on February 28, 1861, created out of lands then currently in the Utah, Kansas, Nebraska, and New Mexico territories. The Nevada Territory was also organized in 1861, on March 2, with land taken from the existing Utah Territory. Initially, only the western 2/3 of what is currently the State of Nevada was included in the territory, with its boundary to the east being the 39th meridian west from Washington , and to

17822-582: Was the next European in the region. A member of the Society of Jesus (" Jesuits "), he led the development of a chain of missions in the region. He converted many of the Indians to Christianity in the Pimería Alta (now southern Arizona and northern Sonora ) in the 1690s and early 18th century. Spain founded presidios ("fortified towns") at Tubac in 1752 and Tucson in 1775. When Mexico achieved its independence from

17956-550: Was visited by its first non-Spanish Europeans, English trappers. In 1836, the Republic of Texas , which contained the easternmost of the Southwest United States, won its independence from Mexico. In 1845 the Republic of Texas was annexed by the United States and immediately became a state, bypassing the usual territory phase. The new state still contained portions of what would eventually become parts of other states. In 1846,

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