Frustration Falls, is a three drop waterfall located on the Salmon River at the south skirt of the Mount Hood National Forest, in Clackamas County, in the U.S. state of Oregon.

The cascade and its river trail are surrounded by forest of Douglas fir, western hemlock, red cedar, bigleaf maple, red alder and black cottonwood trees.

[4] Hiking to Frustration Falls starts at a trailhead that runs south along Salmon River starting in the town of Welches on U.S. Route 26 as it goes through Mount Hood National Forest.

Two miles later, nestled in the forest along the trail is the historic Rolling Riffle Campground.

The trail is approximately 7 mi (11 km) long and requires skill, visitors should always follow rules of safe waterfall hiking when visiting Frustration Falls.