Excavations of a gravel pit in 2011 and 2012 near the town of Villa Grove in the San Luis Valley of Colorado yielded several Pleistocene megafauna and small mammal fossils. We describe and analyze
the fauna from the site and illustrate how this assemblage provides insights into Colorado high-altitude basin ecosystems during the Late Pleistocene. The fossil assemblage suggests that a sagebrush-prevalent plains environment persisted in this region during the Wisconsinan glaciation, possibly comparable to that of the Great Basin. - This is volume 8 of the Denver Museum of Nature & Science Annals, authored by Evan Alger-Meyer, Jared Maxwell Beeton, Richard K. Stucky, and Steven R. Holen.