Blockhouse Falls is a waterfall on Blockhouse Creek in Klickitat County, Washington, in the Eastern Cascades Slopes and Foothills region, with a total height of about 56 feet. It lies about 7.7 miles west of Goldendale and roughly 58.7 miles southwest of Yakima as the crow flies.
At 56 feet it is on the modest side for Washington, where the typical waterfall with a recorded height stands around 82 feet; it ranks 588th of 941.
The Eastern Cascades Slopes and Foothills lie in the rain shadow of the Cascade crest, with open ponderosa pine forest, lodgepole pine and dry meadows on volcanic terrain. Spring-fed rivers on the porous lava ground stay remarkably steady through the year.
There are 19 recorded waterfalls in Klickitat County. Little Klickitat Falls, a 16-foot cascade waterfall, is under a mile away. Bowman Creek Falls, is about 3.3 miles away. Middle Bowman Creek Falls, is about 3.3 miles away.
Blockhouse Falls is located at 45.8186° N, 120.9826° 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 creek name is confirmed against the federal Geographic Names Information System. 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.