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It is the 6th-largest and the 14th-most-populous of the 50 states. Its capital and largest city 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.
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Arizona, constituent state of the United States of America. Arizona is the sixth largest state in the country in terms of area. Its population has always been predominantly urban, particularly since the mid-20th century, when urban and suburban areas began growing rapidly at the expense of the countryside. Some scholars believe that the state’s name comes from a Basque phrase meaning “place of oaks,” while others attribute it to a Tohono O’odham (Papago) Indian phrase meaning “place of the young (or little) spring.” Arizona achieved statehood on February 14, 1912, the last of the 48 conterminous United States to be admitted to the union.
Arizona is a land of contradictions. Although widely reputed for its hot low-elevation desert covered with cacti and creosote bushes, more than half of the state lies at an elevation of at least 4,000 feet (1,200 metres) above sea level, and it possesses the largest stand of evergreen ponderosa pine trees in the world. Arizona is well known for its waterless tracts of desert, but, thanks to many large man-made lakes, it has many more miles of shoreline than its reputation might suggest. Such spectacular landforms as the Grand Canyon and the Painted Desert have become international symbols of the region’s ruggedness, yet Arizona’s environment is so delicate that in many ways it is more threatened by pollution than are New York City and Los Angeles. Its romantic reputation as a wild desert and a place of old-fashioned close-to-the-earth simplicity is at variance with the fact that after the 1860s the state’s economy became industrial and technological long before it was pastoral or agrarian.
Plate tectonics—the shifting of large, relatively thin segments of Earth’s crust—and stream erosion have done the most to create Arizona’s spectacular topography. Specifically, the Pacific Plate and the North American Plate came into contact and created the major tectonic forces that uplifted, wrinkled, and stretched Arizona’s geologic crust, forming its mountain ranges, basins, and high plateaus. Over the course of millennia, rivers and their tributaries have carved distinctive landforms on these surfaces.
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To Arizona’s two major physiographic divisions, the Colorado Plateau and the Basin and Range Province, geologists add the Transition Zone (or Central Highlands). The northeastern two-fifths of Arizona is part of the scenic Colorado Plateau. Far less rugged than adjacent portions of the plateau in Utah, these tablelands in Arizona consist mainly of plains interrupted by steplike escarpments. Although they are labeled mesas and plateaus, their ruggedness and inaccessibility have been exaggerated. The incomparable Grand Canyon of the Colorado River provides the major exception to what has proved to be an area easily traversed. Forest-clad volcanic mountains atop the plateaus provide the state’s highest points: Humphreys Peak, 12,633 feet (3,851 metres), in the San Francisco Mountains, and Baldy Mountain, 11,403 feet (3,476 metres), in the White Mountains.
More than 200 miles (320 km) of the southern border of the Colorado Plateau is marked by a series of giant escarpments known collectively as the Mogollon Rim. West and south of the rim, a number of streams follow narrow canyons or broad valleys south through the Transition Zone and into the Basin and Range Province. The Transition Zone bordering the plateaus comprises separated plateau blocks, rugged peaks, and isolated rolling uplands so forbidding that they remained mostly unexplored until the late 19th century. The zone marks the ecological border between the low deserts and the forested highlands; it combines elements of both with, for example, the Spanish bayonet of the Sonoran Desert growing alongside the juniper characteristic of higher elevations.
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The Basin and Range region of the southern and western third of the state contains the bulk of the population but none of the large canyons and mesas for which Arizona is famous. It consists largely of broad, open-ended basins or valleys of gentle slope. Isolated northwest-to-southeast–tending mountain ranges rise like islands in the desert plain.
Contrary to desert stereotypes, sand dunes are nearly nonexistent, and stony desert surfaces are seldom visible except in the far southwestern portion of the state. The younger soils of river floodplains provide the more-desirable soils for agriculture.
Virtually all of Arizona lies within the Colorado River drainage system. The Gila River, with its major feeder streams—the Salt and the Verde—is by far the Colorado’s main Arizona tributary.
The Black, White, and Verde rivers are the primary perennial tributaries of the Salt River, which enters the Gila River southwest of Phoenix. Only during the infrequent—and occasionally devastating—flood periods does runoff water advance downstream past the numerous dams built on the Salt’s system. The Gila River rises in that part of the Mogollon Rim located in western New Mexico, and it includes another and smaller Mogollon Rim tributary, the San Francisco River. Two intermittent southern Arizona streams, the Santa Cruz and San Pedro rivers, flow northward into the Gila, while two other intermittent streams, the Agua Fria and Hassayampa rivers, drain central Arizona southward into the Gila. Dams and irrigation systems, except on rare occasions, leave the Gila River dry for most of its length.
Feb 7, 2024 · Where is Arizona? The State of Arizona is located in the southwestern region of the United States. This landlocked state is bordered by California in the west; by Nevada in the northwest; by Utah in the north; by New Mexico in the east; by the Mexican state of Sonora in the south; and by Baja California in the southwest.
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- Phoenix-Mesa (4,716,721)Tucson (1,013,832)
Quick Facts. Capital City: Phoenix. Abbreviation: AZ. Population (2019): 6,626,624 Rank 15 of 50. Region: Southwest. Admission to Statehood: February 14, 1912, 48th State. State Motto: Motto of Arizona is “Diate Deus” State Nickname: The Grand Canyon State.
Arizona is a landlocked state situated in the southwestern region of the United States of America. It has a vast and diverse geography famous for its deep canyons, high- and low-elevation deserts, numerous natural rock formations, and volcanic mountain ranges.
Arizona, State, southwestern U.S. Area: 113,990 sq mi (295,233 sq km). Population: (2020) 7,151,502; (2023 est.) 7,431,344. Capital: Phoenix. Arizona is bordered by Mexico and the U.S. states of Utah, New Mexico, California, and Nevada.
Nov 30, 2023 · Arizona became a state in 1912, overcoming political and social challenges, including the fight for women's suffrage. World War II brought economic growth and military bases. Today, Arizona thrives as a vibrant state known for its stunning landscapes, diverse culture, and rapid population growth.
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