[6][4] The type locality is "10 miles northwest of Abraham on the Road to Joy, Millard County, Utah.

[3] On the subject of scalation, one of the more distinctive characteristics of this subspecies is that it has three or more internasal scales – something that it has in common with C.

111° West, Arizona west and north of the Colorado River as well as the north rim of the Grand Canyon, the entire state of Nevada (excluding Esmeralda, Nye and Clark counties), California east of the Sierra Nevada from Lower Klamath Lake south to below Lake Mono, Oregon south and east of the line Upper Klamath Lake–Fort Rock–Burns–Council (Idaho).

[9] Inhabits the dry and barren areas of the Great Basin region, being found on hills, summits and old lake benches.

They are said to prefer southern exposures among rocks and boulders on hillsides and buttes, low foothills, mountainsides, open deserts, alfalfa fields and valley floors.