Tenmile Rapids is a stretch of rapids in Asotin County, Washington, in the Columbia Plateau region. It lies about 3.1 miles southeast of Asotin and roughly 95.2 miles south of Spokane Valley as the crow flies.
The Columbia Plateau is a vast expanse of layered basalt flows covered by sagebrush steppe, grassland and dryland wheat. Waterfalls here drop over basalt cliffs in coulees and river canyons carved by ancient floods.
Asotin County holds 6 recorded rapids, and several are close by. Buffalo Rapids, is about 8.9 miles away. Captain John Rapids, is about 11.8 miles away across the state line in Idaho. Captain Lewis Rapids, is about 14.4 miles away across the state line in Idaho.
Tenmile Rapids is located at 46.3046° N, 117.0059° W. The listing is based on the USGS Geographic Names Information System, 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 rapid yet.