White Tank Mountain Regional Park is nearly 30,000 acres, making it the largest park in the Maricopa County system. Most of the Park is made up of the rugged and beautiful White Tank Mountains, which is a freestanding range separating the Phoenix Basin of the Salt River Valley from the Hassayampa Plain. The range rises sharply from its base, at 1,400 feet above sea level, in a series of rocky ridges and fault lines to peaks of over 4,000 feet. The base and upper levels of the mountain are deeply serrated with ridges and deep canyons. Infrequent heavy rains cause flash floodwaters to plunge through the canyons and pour out upon the plain where they lose their momentum. These torrential flows, pouring down chutes and dropping off ledges, have scoured out a series of depressions, or "tanks", in the white granite rock below. These white tanks give the mountains their name.
The desert landscape within White Tank Mountain Regional Park is beautiful and quite fragile. All visitors have a responsibility to care for the park. Please have respect for the land and other visitors, and help preserve the park for the future.
White Tank Mountain Regional Park is open 6 a.m. to 8 p.m. Sun - Thurs and 10 p.m. Fri & Sat.