Marginal records (A. H. Howell, 1924:26).—Colorado: Upper Navajo River; Osier. New Mexico: type locality. Colorado: Navajo Peaks.
Ochotona princeps princeps (Richardson).
1828. Lepus (Lagomys) princeps Richardson, Zool. Jour., 3:520, type from headwaters of Athabaska River, near Athabaska Pass, Alberta.
1897. [Ochotona] princeps, Trouessart, Catalogus Mammalium, p. 648.
Marginal records.—British Columbia: headwaters South Pine River (Anderson, 1947:95). Alberta: Muskeg Creek "about" 60 mi. N Jasper House (ibid.). British Columbia: Morrissey (ibid.). Montana: mts. near St. Marys Lake (A. H. Howell, 1924:14); mts. 15 mi. E Corvallis (ibid.); Lake Como, Bitterroot Mts. (ibid.). Idaho: Coeur d' Alene Nat'l Forest (Rust, 1946:322). British Columbia: Mt. Evans, "near" Cranbrook (A. H. Howell, 1924:14); Spillamacheen River (ibid.)
Ochotona princeps saxatilis Bangs.
1899. Ochotona saxatilis Bangs, Proc. New England Zool. Club, 1:41, June 5, type from Montgomery, "near" Mt. Lincoln, Park County, Colorado.
1924. Ochotona princeps saxatilis, A. H. Howell, N. Amer. Fauna, 47:23, September 23.
Marginal records (A. H. Howell, 1924:24, except as otherwise noted).—Wyoming: Medicine Bow Mts.; just above Centennial in mts. (Martin, 1943:394). Colorado: Estes Park; Pikes Peak; Silverton. Utah: La Sal Mts. Colorado: Crystal Lake, 5 mi. W Lake City; Middle Brush Creek; Ten Mile Creek; Berthoud Pass; Irwin Lakes (A. H. Howell, loc. cit.) not found.
Ochotona princeps schisticeps (Merriam).