Found in 3 samples

United States: Haystack Cave (upper levels) (Pleistocene - Holocene), Haystack Cave (lower levels) (Late Pleistocene), Jones (Late Pleistocene)

See also Urocitellus, Urocitellus armatus, Urocitellus columbianus, Urocitellus mollis, Urocitellus parryii, Urocitellus townsendii, Urocitellus undulatus, Urocitellus washingtoni