Excavation of Lamb Springs mammoth skull.

National and State Register

Prehistoric Paleo-Indian Cultures of the Colorado Plains

The Paleo-Indian period began approximately 11,500 years ago and extended some 4,000 years.  Sites associated with this period contain undisputed evidence of human occupation including tools (particularly projectile points), fire pits, and animal remains.

(Cover documentation accepted by National Register in 1990, accepted for State Register 6/9/2004.) 

Prehistoric Paleo-Indian Cultures of the Colorado Plains (615)

Douglas County

Littleton

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    Lamb Spring

    This archaeological site contains evidence of hunting and game processing that may pre-date 9,500 BC, a period before the earliest well accepted archaeological evidence of human activity in the Americas. 

Weld County

Kersey

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    Jurgens Site

    The Jurgens Site, a Paleo-Indian Plano Period multiple activity site, is represented by a long-term camp or habitation site, short term camp site, and a butchering and processing area for animals obtained in a small mass kill.