Located one hour and 20 minutes northwest of Klamath Falls, Oregon, the Sevenmile Marsh trailhead sits at 5,480 feet in elevation.
There is one vault toilet, dispersed camping, fire rings, and picnic tables. The compact parking area fits about 4-6 cars, with no room for stock trailers or turn-around.
There is no potable water. Visitors need to pack plenty of water.