The Mammoth Site is an internationally renowned working paleontological site/museum. More than 59 Columbian and woolly mammoths as well as 85 other species of Ice Age fauna have been discovered to date. The Mammoth Site was discovered in 1974 when a housing developer struck bones when leveling a hill for a housing development. The Mammoth Site was formed as a non-profit 501-C-3 organization in 1975. It was declared a National Natural Landmark by the Department of the Interior in 1980. Time travel to the Ice Age and walk the edges of a sinkhole where Columbian and woolly mammoths, camels, wolves, and Giant short-faced bears roamed the area and became trapped 26,000 years ago, leaving an ancient treasure of fossil remains. Preservation, education, and research programs are primarily funded through your admission fees and donations. The 36,000 square foot visitor center is recognized world wide for its interpretation and exhibits. A "Must See" in the Black Hills of South Dakota.