Boulder Falls is a waterfall in Custer County, Idaho, in the Idaho Batholith region. It lies about 15.6 miles northwest of Sun Valley and roughly 85.9 miles east of Boise as the crow flies.
Its height has not been recorded in the source data.
The Idaho Batholith is a maze of steep granite mountains and deep canyons blanketed by lodgepole and ponderosa pine and Douglas fir, with some of the largest roadless areas in the lower 48. Rivers here are wild and fast, dropping through rocky gorges.
Custer County holds 17 recorded waterfalls, and several are close by. North Fork Falls, is about 3.4 miles away. East Pass Creek Falls, 50 feet high, is about 10.8 miles away. Upper Trail Creek Falls, is about 13.2 miles away.
Boulder Falls is located at 43.8853° N, 114.5249° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The exact position has not yet been verified on aerial imagery, so treat the map pin as approximate. Details on trails, parking and access have not been documented for this waterfall yet.