When one hears “Yellowstone National Park” one always thinks of Wyoming and of course the vast majority of the park is in Wyoming, but there are small sections of Yellowstone in Idaho and Montana. Cave Falls is in Wyoming, but over near that little sliver of the park that Idaho owns. A 30 mile gravel road from Ashton, ID takes you there. The Falls River originates in the area of SW Yellowstone known as Cascade Corner and eventually winds it’s way southwest to feed the Henry’s Fork of the Snake River, one of the great fly fishing rivers of the west.
Wildlife often seen in the Cave Falls area.
From Cave Falls, we drove 30 miles back out the gravel Forest Service Road to Upper and Lower Mesa Falls.
Upper Mesa Falls is the largest drop (114 feet) in the Snake River system.