Northern Arizona features forests of pine, Douglas fir, and spruce trees; the Colorado Plateau; some mountain ranges (such as the San Francisco Mountains); as well as large, deep canyons, with much more moderate summer temperatures and significant winter snowfalls.
state in the southwestern region of the United States.
During the Mexican Revolution from 1910 to 1920, several battles were fought in the Mexican towns just across the border from Arizona settlements. Because of wartime fears of Japanese invasion of the West Coast, the government authorized the removal of all Japanese-American residents from western Washington, western Oregon, all of California, and western Arizona.
Throughout the revolution, numerous Arizonans enlisted in one of the several armies fighting in Mexico. From 1942 to 1945, they were forced to reside in internment camps built in the interior of the country.
It is the sixth largest and the 14th most populous of the 50 states. Arizona's border with Mexico is 389 miles (626 km) long, on the northern border of the Mexican states of Sonora and Baja California.
Arizona is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912.