1912 Arizona was admitted the 48th state to the Union

Its capital and largest city is Phoenix. Arizona is noted for its desert climate in its southern half, with very hot summers and quite mild winters. The northern half of the state features forests of pine, Douglas fir, and spruce trees, a very large, high plateau (the Colorado Plateau) and some mountain ranges, as well as large, deep canyons. About one-quarter of the state is made up of Indian Reservations that serve as the home of a number of Native American tribes.