The faunal assemblage from Five Finger Ridge, an archaeological site in central Utah that was occupied by the Fremont from approximately AD 1100 to 1350, shows marked transitions in the relative abundances of 3 leporid taxa. At the time of initial occupation of the site, Sylvilagus audubonii and Lepus sp. dominated the assemblage but through time were gradually replaced by Sylvilagus nuttallii. I contextualized the shifting frequencies of these species using independent paleovegetation data. The data collectively suggest that the altitudinal range of the leporid species shifted during occupation of the site as a response to expanding pinyon-juniper woodlands.