The Agate Bluff Archaeological Site is a collection of four Late Prehistoric rockshelters located in a large bluff in northwest Weld County near the Wyoming border. In 1951–52 siblings Cynthia and Henry Irwin excavated the rockshelters and determined…

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…