Washington Lake is an alpine lake in Custer County, Idaho, United States, located in the White Cloud Mountains in the Sawtooth National Recreation Area. The lake is accessed from Sawtooth National Forest trails 109 and 203.Sawtooth National Forest. "Sawtooth National Forest" [map].1:126,720, 1"=2 miles. Twin Falls, Idaho: Sawtooth National Forest, United States Forest Service, 1998.
Washington Lake is south of Patterson Peak and southeast of Fourth of July Lake, although it is in a separate basin.
Fish species commonly found in this lake are the invasive rainbow trout (Oncorhynchus mykiss) the cutthroat trout (Onchorhynchus clarkii), and a hybrid of the rainbow and cutthroat trouts referred to as Onchorhynchus mykiss x clarkii.
References
See also List of lakes of the White Cloud Mountains Sawtooth National Recreation Area White Cloud Mountains