Recently and legally collected in private property along the Connecticut River Valley. This is the fossil impressions of a Theropod (raptor) that existed some 200 Million Years Ago. The species that made these tracks is relatively unknown to science, though it he track name is known as the Grallator. Grallator tracks are believed to have been made by Podokasaurus holyokensis
These tracks have been lightly polished to help pop them out. The polish May be scrubbed off with a little elbow grease so the fossil can revert to its original state.