1) Arizona is located in the southwestern United States and borders California, Nevada, Utah, Colorado, New Mexico, and Mexico.
2) Major landmarks include the Four Corners Monument, Grand Canyon, Hoover Dam, and Meteor Crater. Landforms include the Colorado Plateau, Black Mesa, and Sonoran Desert.
3) Native Americans adapted to the climate by building adobe structures, and people now generate hydroelectricity by modifying dams like Glen Canyon Dam and depend on the Colorado River for water and food.