Upper Three Corner Falls is a 94-foot waterfall in Skamania County, Washington, in the Cascades region. It lies about 7.5 miles northwest of Stevenson and roughly 26.6 miles northeast of Gresham as the crow flies.
At 94 feet it is taller than the typical Washington waterfall of about 82 feet, ranking 423rd of 941 with a recorded height. By form it is a segmented waterfall, splitting into two or more separate streams as it falls, combined with a plunge character.
The Cascades are a high volcanic range of snow-capped peaks, deep glacial valleys and dense conifer forest of Douglas fir, western hemlock and true firs, with abundant rain and snow on the western slopes. Basalt cliffs and lava flows give the region one of the highest concentrations of waterfalls in the country.
Skamania County holds 244 recorded waterfalls, and several are close by. Middle Three Corner Falls, a 76-foot veiling plunge waterfall, is under a mile away. Lower Three Corner Falls, a 53-foot plunge waterfall, is under a mile away. Waterfall 7 mi NW of Stevenson, is about 1 mile away.
Upper Three Corner Falls is located at 45.7512° N, 122.0174° 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.