Located two and a half miles southwest of Franktown, Franktown Cave is a prehistoric archaeological site in a large rockshelter that contained artifacts from prehistoric occupations over 8,000 years. Some of the findings include rare perishable artifacts…

The Plains Woodland period covers approximately a thousand years of Colorado prehistory across a large portion of the state. Plains Woodland describes the groups of people occupying much of the western plains from present-day Nebraska and Kansas, west of…

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 Wilbur Thomas Shelter Archaeological Site is a rockshelter in northwest Weld County featuring evidence of at least six intermittent occupations stretching over 8,500 years. David A. Breternitz and graduate students from the University of Colorado…