There are no trails leading to the lake , although it is most easily accessed from Sawtooth National Forest trail 092 .
Mushroom Lake is a small alpine lake in 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 Mushroom Lake is most easily accessed from Sawtooth National Forest trail 092 .
Mushroom Lake is a small alpine lake in Custer County , Idaho , United States , located in the Sawtooth Mountains in the Sawtooth National Recreation Area .