About Florissant Fossil Beds

Geographical Map of Florissant Fossil Beds National Park
Welcome to the Florissant fossil beds iDigPaleo site! The Florissant Formation in central Colorado preserves fossilized plants, insects, and other organisms in a 34 million year old lake deposit. This is an extremely diverse fossil site with approximately 1800 described species. Florissant provides one of the last glimpses of the flora and fauna of the Eocene just before the transition into the cooler Oligocene epoch.