Mushroom Lake
Mushroom Lake is a small alpine lake in Custer [County, Idaho|Custer County], Idaho, United States, located in the Sawtooth Mountains in the Sawtooth [National Recreation Area]. There are no trails leading to the lake, although it is most easily accessed from Sawtooth National Forest trail 092.
Mushroom Lake is in the Sawtooth Wilderness, and a wilderness permit can be obtained at a registration box at trailheads or wilderness boundaries. Hell [Roaring Lake] and Imogene Lake are downstream of Mushroom Lake.