Rainbow Lake is an

alpine lake Alpine lakes are classified as lakes at high altitudes in mountainous zones, usually near or above the tree line, with extended periods of ice cover. These lakes are commonly formed from glacial activity (either current or in the past) but can al ...

in Custer County,

Idaho Idaho ( ) is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyom ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

, located in the

White Cloud Mountains The White Cloud Mountains are part of the Rocky Mountains of the western United States, located in central Idaho, southeast of Stanley in Custer County. The range is located within the Sawtooth National Recreation Area (SNRA) and partially within ...

in the

Sawtooth National Recreation Area The Sawtooth National Recreation Area (SNRA) is a national recreation area in central Idaho, United States that is managed as part of Sawtooth National Forest. The recreation area, established on August 22, 1972, is managed by the U.S. Forest Ser ...

. The lake is accessed from

Sawtooth National Forest Sawtooth National Forest is a United States National Forest, National Forest that covers 2,110,408 acres (854,052 ha) in the U.S. states of Idaho (~96 percent) and Utah (~4 percent). Managed by the U.S. Forest Service in the United States Depart ...

trail 107.Sawtooth National Forest. “Sawtooth National Forest” ap1:126,720, 1”=2 miles. Twin Falls, Idaho: Sawtooth National Forest, United States Forest Service, 1998. Rainbow Lake is northeast of

Horton Peak Horton Peak at above sea level is a peak in the White Cloud Mountains of Idaho. The peak is located in Sawtooth National Recreation Area in Custer County. Horton Peak rises above the southeastern end of the Sawtooth Valley west of the Sawtooth ...

and southwest of the Champion Lakes, although in a separate sub-basin.

References

See also