Billy Clapp Lake

Coulee City, Washington 99115

Billy Clapp Lake

Billy Clapp Lake Professional Guide

Detailed Trail Description from our Guidebook

"Billy Clapp Lake, more than 3 miles long, is a stunning body of water behind a shallow earthen dam. The lake is fed by waters coming down the main canal from Banks Lake, which gets its water from the Columbia River backed up by the Grand Coulee Dam.

The main canal from Banks dumps its water into Billy Clapp Lake in a thundering waterfall known as Summer Falls (water is released to the falls only in spring and summer to serve irrigation needs throughout the Columbia Basin). Though the lake is manmade, its beauty is entirely natural. A host of animals makes use of the wealth of water here, and native plants thrive in the irrigated basin. Begin climbing the trail and almost immediately enjoy stunning views across the basalt cliff-lined lake."

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Trail Information

Coulee City
Nearby City
Trail Type
Skill Level
4 hours
1,200 feet
Trailhead Elevation
1,500 feet
Top Elevation
Washington Department of Fish and Wildlife
Local Contacts
Washington State Department of Natural Resources (DNR) Moses Lake
Local Maps

Activity Feed

Dec 2018