This lizard is endemic to the western United States. It ranges from southeastern Oregon and southern Idaho south through northeastern California, Nevada, and western and lowland central Utah to southeastern California and western Arizona (McGuire 1996, Stebbins 2003); a museum record for Spokane County, Washington, is probably erroneous (Nussbaum et al. 1983) and at least should be considered questionable until confirmed by additional field work (McGuire 1996). Its elevational range extends from around sea level to about 7,500 feet (2,290 m) (Stebbins 2003).