Edelman Fossil Park, located in Mantua Township, New Jersey, consists of a 66-million-year-old 6-inch (150 mm) bone bed set into a 65-acre (26 ha) former marl quarry. It is currently the only facility east of the Mississippi River that has an active open quarry for public Community Dig Days. Formed at the end of the Cretaceous Period during the Cretaceous-Paleogene extinction event, this rich fossil deposit is abundant in marine life which is indicative of the shallow sea that once covered the area that would become Southern New Jersey. As of February 2022, the fossil park is undergoing renovations to become the site of the Edelman Fossil Park Museum but will continue to be available for school, scout, camp, and public programs once construction is complete. It is currently closed to the p