Cudworth, N. L., and J. L. Koprowski. 2010. First record of range extension of the cliff chipmunk (Tamias dorsalis) into the Huachuca Mountians. Western North American Naturalist 70:418-420.

Chipmunks are widely distributed throughout the mountain ranges of Arizona. However, no living chipmunks are known from the Huachuca Mountains despite the availability of favorable habitat. Based upon pelage characteristics of captured individuals, we provide the first report of a breeding population of cliff chipmunks (Tamias dorsalis) in the Huachuca Mountains and discuss possible mechanisms of their arrival.