Inscription. Ash Hollow is a focal point for understanding the geologic history of the Central Great Plains prior to the onset of the Great Ice Age. It is the type locality of the Ash Hollow Format... More on HMDB
Inscription. Ash Hollow was famous on the Oregon Trail. A branch of the trail ran northwestward from the Lower California Crossing of the South Platte River a few miles west of Brule, and descended... More on HMDB

