Dent Site


Dent Site is a Clovis culture site located in Weld County, Colorado, near Milliken, Colorado. It provided evidence that man and mammoth co-existed in the Americas.
The site is located on an alluvial fan alongside the South Platte River.

Discovery

Following a period of heavy rainfall and flooding in 1932, Frank Garner, Union Pacific Railroad employee, discovered large animal bones that were exposed near the Dent railroad station. The Dent Site, in Weld County, Colorado, was a fossil mammoth excavation for most of 1932. The first Dent Clovis point was found November 5, 1932 and the in situ point was found July 7, 1933.

Findings

Clovis culture

The Clovis culture used projectile points in hunting. Previous to the use of projectile points, indigenous people used a tool-kit like that used in Asia, which included large axe cutting tools, scrapers, blades and flake tools. The Clovis point was the first use of large, symmetrical and fluted projectile points.

Mammoth bones

Mammoth bones and what were later called Clovis points were found at the Dent Site in 1932. The site was notable for both the presence of the projectile points larger than the known Folsom points and one of the first direct pieces of evidence that man and mammoth co-existed in the Americas. The mammoth killed were not part of a family group, as originally hypothesized, and were not related to other mammoth killed at Clovis sites, such as Blackwater, New Mexico and Miami, Texas.

Excavations

YearNameOrganizationPeriod and artifactsComments
1932Father Conrad BilgeryRegis UniversityColumbian mammoth bones and projectile points later identified as Clovis points.Father Conrad Bilgery at Regis College was notified following the discovery who conducted an initial excavation of the site.
1933Jesse Dade FigginsDenver Museum of Natural HistoryAt least 12 mammoth, mostly young or female. Figgins believed rocks were brought in to assist the kill.Figgins was considered the "Early Man expert" due to his work at the Folsom Site in New Mexico.
1973Joe Ben Wheat, Marie Wormington, Frank Frazier, Vance HaynesUniversity of ColoradoTotal of 15 mammoth.Radiocarbon dating of 11,200 +/- 500 years before present.
1987Robert Brunswig, Jr.University of Northern ColoradoTotal of 15 mammoth, 10 young and 5 adults, with evidence of butchering.Radiocarbon dating was performed again, with dates 10,590 +/- 500 years before present and 10,950 +/- 480 years before present, at the low end of the estimated range from 1973. The killings were estimated to have been committed during the fall. Plants of the late Pleistocene period were found in mammoth teeth tarter: grass, prickly pear, bark and riverine plants.