Mill Creek Falls, Waterfall in Prospect State Scenic Viewpoint, Oregon, US

Mill Creek Falls is a 173-foot waterfall at the south end of Mill Creek, where it drops over a cliff of petrified volcanic ash into the Rogue River Canyon. It shares that same rock wall with Barr Creek Falls, and each has its own viewpoint.

Mill Creek Falls drops 173 feet over a cliff of petrified volcanic ash laid down by the eruption of Mount Mazama, the volcano that later collapsed to form Crater Lake. The falls shares this rock wall with Barr Creek Falls, and both creeks run parallel from the Mill Creek Campground before cutting into the Rogue River Canyon.

The Mill Creek Falls Scenic Area incorporates viewing platforms and trail systems developed by Boise Cascade Corporation to enhance public access to natural landmarks.

A short trail of roughly half a mile departs from the parking area on Mill Creek Drive to reach observation platforms overlooking the falls. Multiple viewpoints along the route allow visitors to see both cascades from different angles.

Mill Creek Falls drops 173 feet, making it one of Oregon's tallest waterfalls. It shares its cliff with Barr Creek Falls, and both can be seen side by side from their viewpoints. The cliff is made of petrified volcanic ash from Mount Mazama's eruption.