Kremmling Field Office 2103 East Park Avenue Kremmling, CO 80459
Cretaceous Ammonite ACEC
Fossil collection is prohibited at this site, where the fossils of more than 100 invertebrate species can be found. The Kremmling Cretaceous Ammonite Locality takes visitors 72.5 million years back in time where they can view well-preserved specimens of tropical and subtropical mollusk fossils. Even the smallest rocks may contain scientifically and educationally valuable finds. This area has the highest concentration of such fossils in the world and is perfect for avid fossil enthusiasts as well as those visiting for the first time.