Hudson-Meng Bison Bonebed - Credit: Wikimedia Commons
The Hudson-Meng Bison Bonebed site, officially named the Hudson-Meng Education and Research Center, is a fossil site located in the Oglala National Grassland of Sioux County, Nebraska 20 miles northwest of Crawford. It contains the 10,000-year-old remains of up to 600 bison."Hudson-Meng Bison Bonebed". Fossil Freeway. Retrieved 2010-10-31. Read more on Wikipedia
Source: en.wikipedia.org