The Sonoran Desert is one of the hottest deserts of the United States, and maintains warm temperatures year round. Despite the sparse amounts of precipitation during the year, the desert is home to a diverse population of flora and fauna because it has two rainy seasons a year. Several plant populations thrive because of their specialized adaptions to the climate, and various species of cactus can be found in the wild.
See Article History Alternative Title: Arizona is the sixth largest state in the country in terms of area. Its population has always been predominantly urban, particularly since the midth century, when urban and suburban areas began growing rapidly at the expense of the countryside.
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, feet 1, metres above sea leveland 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.
The Colorado River forms the boundary with California and Nevada. Phoenixsituated in the south-central part of the state, is the capital and largest city. Areasquare milessquare km. Population 6,; est.
Over the course of millennia, rivers and their tributaries have carved distinctive landforms on these surfaces. 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.
Arizona physiographic regionsPhysiographic regions of Arizona. Colorado Plateau and Grand Canyon, northern Arizona. Vermilion Cliffs National Monument, northern Arizona. 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.
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 stereotypessand 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. Drainage Virtually all of Arizona lies within the Colorado River drainage system.
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.
Several other small and intermittent streams, such as the Bill Williams River, drain a large but arid part of western Arizona. Climate About half of Arizona is semiarid, one-third is arid, and the remainder is humid. The Basin and Range region has the arid and semiarid subtropical climate that attracts most winter visitors and new residents.
Occasional light frosts occur at most locations in the Basin and Range region in winter, and some precipitation interrupts the exceedingly dry springs and mildly dry falls. Winter rains come from the Pacific.Lesson Plans. Grade Level Content Area.
Subject / Country Introduction to Islam: Roxanne Taylor and Jayme Taylor: Culture and Gender Content Area: Geography, History, Research/Writing, Science (including Environment and Disease) and Math; Title Author. The University of Arizona’s first M.A. degree in Geography is awarded to Charles R.
Gildersleeve The Department of Geography and Area Development is . Arizona shares land borders with Utah to the north, the Mexican state of Sonora to the south, New Mexico to the east, and Nevada to the northwest, as well as water borders with California and the Mexican state of Baja California to the southwest along the Colorado River.
Arizona is also one of the Four Corners states and is diagonally adjacent to Colorado. The Great Arizona Almanac: Facts about Arizona, edited by Dean Smith. pages. Westwinds Press; 1st edition (October 5, ) The Great Arizona Almanac™ is an essential read for anyone wanting the latest, greatest scoop on the history, geography, economy, and people of the Grand Canyon State.
Filled with photographs, illustrations, maps, and up-to-date information, this comprehensive source will . Find quality Lessons, lessonplans, and other resources for Middle School U.s.
History and Geography and much more. In this lesson, students will learn 9 essential elements for interpreting and creating maps.