Distribution and Habitat
In the USA, the northern extent of the range is from southeastern California east to southern Nevada, into Utah, Colorado and the southwestern region of the state of Kansas. It occurs as far south as the tip of the Baja California Penninsula, Mexico, and on the Mexican mainland, down to the state of Hidalgo (Stebbins 1985) . This toad lives in rough, rocky regions and open grasslands. It can be found near springs, seepages and persisting pools in the desert and in rocky crevices (Storer 1925; Conant and Collins 1991; Stebbins 1985) . This toad ranges in elevation from near sea level to 2,000 m (Stebbins 1985).