Paleontological data related to the identification of paleotaxa present at the localities. Geologic data related to the lithology or the depositional environment of the fossiliferous units. All fossil localities should be documented using both ground and aerial photos wherever possible. Ground photos should include close-up details showing the fossils, sedimentary structures, and general setting of the locality. Aerial photos should be at a scale appropriate to the physical characteristics of the locality.
Natural erosion is a principle threat to all paleontological resources.
Fossils exposed at the surface are subjected to physical and chemical forces that can often be destructive. Continued inventory and monitoring of fossil areas subject to significant erosion is recommended. Construction and visitor use may cause erosion, although in some cases these activities may also expose additional fossil resources. In 1994, the East Entrance road construction was altered slightly because of a significant fossil plant discovery. Fossil sycamore leaves from this site were well-preserved and extremely large in size.