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Arizona Geography

Landforms Arizona landforms took millions of years to develop, and when the earth ceased its restlessness, a pattern of great variety and contrast covered the land.

The Colorado Plateau, a series of flat lands, gorges, mountains and valleys, extends south into Arizona, and covers most of northern half of the state. The Black Mesa, Painted Desert, and Monument Valley in northeastern Arizona are some of the plateau's most interesting areas.

Scattered tree-covered ranges of the Rocky Mountains wind through the Plateau, including the Black, San Francisco and White Mountains. Humphreys Peak is the highest point at 12,633 ft.

The state's most dramatic feature, the Grand Canyon, snakes through the northwest corner. Carved deep into the earth by wind and water, it's estimated to be over 5 million years old.

Moving south toward the Phoenix area the land begins to flatten some. Rust colored peaks of the Big Horn, Gila and Superstition Mountains give way to boulders, shrubs and saguaro cactus, and the magnificent landscapes of the Sonoran Desert.

The Colorado River forms most of Arizona's western border with California and Nevada. It also runs through the heart of the Grand Canyon. Additional rivers of size include the Little Colorado, Gila and Salt.

Arizona Photographs

Antelope Canyon in Arizona - USA

Antelope Canyon...
by Roland Gerth
Buy This at Allposters.com

Arizona Cities, Counties & Area Codes

City County Area Code
Chinle Apache 928
Sierra Vista Cochise 520
Flagstaff Coconino 928
Payson Gila 928
Safford Graham 928
Clifton Greenlee 928
Parker La Paz 928
Tempe Maricopa 480
Gilbert Maricopa 480
Chandler Maricopa 480
Scottsdale Maricopa 480
Glendale Maricopa 623
Surprise Maricopa 623
Mesa Maricopa 480
Phoenix Maricopa 602
Peoria Maricopa 623
Lake Havasu City Mohave 928
Show Low Navajo 928
Tucson Pima 520
San Tan Valley Pinal 480
Nogales Santa Cruz 520
Prescott Yavapai 928
Yuma Yuma 928

About the Author

John Moen is a cartographer who along with his wife are the orignal founders of worldatlas.com. He and his wife, Chris Woolwine-Moen, produced thousands of award-winning maps that are used all over the world and content that aids students, teachers, travelers and parents with their geography and map questions. Today, it's one of the most popular educational sites on the web.

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This page was last updated on July 10, 2020.