Townsend’s ground squirrel (Urocitellus townsendii townsendii) is a state status candidate species in Washington. The population size and trend of Townsend's ground squirrel in Washington is unknown. Population status of this Washington-endemic ground squirrel requires clarification. Significant declines have occurred in many areas, yet this species is common at a number of human-modified locations.
Habitat concentration areas (HCAs) are defined as significant habitat areas that are expected or known to be important for focal species based on survey data or habitat association modeling(WHCWG 2012). HCAs provide locations from which to model linkages. Additional masked occurence data supplied by the Washington Department of Fish and Wildlife was merged to the HCA data set by Conservation Biology Institute.