Tamias umbrinus J. A. Allen, 1890 . Bull. Am. Mus. Nat. Hist., 3:96.

TYPE LOCALITY: U.S.A., Utah, Summit Co., Uinta Mtns., Blacks Fork, about 8000 ft. (2438 m) .

DISTRIBUTION: E. California and N. Arizona to N. Colorado, S.E. and N. W. Wyoming, and extreme S.W. Montana (U.S.A.).

ISIS NUMBER: 5301410002007018001 as Eutamias umbrinus .