Located about twenty miles south of the South Platte River in northeast Colorado, the Donovan Archaeological Site is a Late Prehistoric bison-processing area with evidence of multiple Upper Republican occupations between about 1000 and 1300 CE. The…

The Harris Archaeological Site includes an Archaic period rockshelter first occupied at least 3,500 years ago, associated rock art, and a separate historic Ute campsite along a drainage on the eastern edge of the Uncompahgre Plateau. The site is named…

The Roberts Ranch Buffalo Jump in northern Larimer County is a Protohistoric period (1540–1860 CE) bison kill and butchering site that dates to about 1663–84 and represents one of the southernmost bison jump sites on the Great Plains. Discovered in 1957,…

The Roxborough State Park Archaeological District contains one historic homestead and a variety of prehistoric rockshelters and campsites dating back to at least the Early Archaic period (5500–3000 BCE). It is located at the southern end of the valley…

The Torres Cave Archaeological Site is a rock shelter in the wall of a canyon south of La Junta. Excavated in 1977 by the Denver chapter of the Colorado Archaeological Society, the site was probably occupied over several centuries as a seasonal Plains…