Cave Falls is only 20 feet high but reaches 250 feet across the Falls River in the southwest corner of Yellowstone National Park. A popular starting point for hikers into Yellowstone's back country, it is accessible by only one road from Ashton. Cave Falls is also accessible in winter by snowmobile.
Eastern Idaho, E. of Ashton
E. from Ashton on Highway 47 to Cave Falls Road. Cave Falls Road then turns into Forest Rd. 582 (Cave Falls Rd.).