United States of America
The Opal Creek Wilderness is a wilderness area located in the Willamette National Forest in the U.S. state of Oregon, on the border of the Mount Hood National Forest. It has the largest uncut watershed in Oregon. Opal Creek and nearby Opal Lake were named for Opal Elliott, wife of early Forest Servi
ce ranger Roy Elliott. Much of the valley's old-growth forest was burnt in a 2020 wildfire, and, as of 2026, it has been closed to the public since then.
Listen to the audio guide for Opal Creek Wilderness Free on WIP — starts by itself when you arrive, even with the screen off