The natural habitat of eastern Colorado was shortgrass prairie. Over the past 150 years much of the land was used for agriculture. Of the 40% of the remaining shortgrass prairie, much of it is "degraded" and fragmented due to neighboring cities, towns and farms.
The Lindenmeier Site, named for the previous Lindenmeier Ranch, is a Folsom archaeological site on the Soapstone Prairie Natural Area. The site contains the most extensive Folsom culture campsite yet found with an uncorrected averaged radiocarbon date of 10,660±60 B.P., or 8,710 B.C. The site was declared a National Historic Landmark on January 20, 1961.