Diamond Lake is a small alpine lake

Alpine lake

Alpine lakes are classified as lakes or reservoirs at high altitudes, usually starting around 5,000 feet in elevation above sea level or above the tree line....

 in Elmore County

Elmore County, Idaho

Elmore County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 27,038, down 7.2% from 29,130 in 2000. The largest city and county seat is Mountain Home....

, Idaho

Idaho

Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, located in the Sawtooth Mountains

Sawtooth Range (Idaho)

The Sawtooth Range is part of the Rocky Mountains, located within a few miles south of Stanley, Idaho, in the Western United States. Much of mountain range is within the Sawtooth Wilderness, part of the Sawtooth National Recreation Area...

 in the Sawtooth National Recreation Area

Sawtooth National Recreation Area

The Sawtooth National Recreation Area is a National Recreation Area located in central Idaho, within the Boise, Challis, and Sawtooth National Forests. The recreation area is managed by the U.S. Forest Service and includes the Sawtooth Wilderness...

. The lake is accessed from Sawtooth National Forest

Sawtooth National Forest

Sawtooth National Forest is in Idaho and Utah was protected in 1905 by U.S. President Theodore Roosevelt as the Sawtooth Forest Reserve. Today the forest administers over 2.1 million acres of some of the most remote forestland in the lower 48 states, and there are over 1,000 lakes and 3,000...

 trail 454 along the Little Queens River.

Diamond Lake is in the Sawtooth Wilderness

Sawtooth Wilderness

The Sawtooth Wilderness is located in the U.S. state of Idaho. Managed by the U.S. Forest Service in the Sawtooth National Recreation Area. The Wilderness was upgraded in 1972 from "primitive area" status, affording greater protections of the habitat...

, and a wilderness permit can be obtained at a registration box at trailheads or wilderness boundaries. Triangle Lake

Triangle Lake (Idaho)

Triangle Lake is a small alpine lake in Elmore County, Idaho, United States, located in the Sawtooth Mountains in the Sawtooth National Recreation Area...

 is 0.15 mi (0.241401 km) east of Diamond Lake, although over a ridge and in a separate sub-basin.

See Also

• List of lakes of the Sawtooth Mountains (Idaho)
• Sawtooth National Forest
  Sawtooth National Forest
  Sawtooth National Forest is in Idaho and Utah was protected in 1905 by U.S. President Theodore Roosevelt as the Sawtooth Forest Reserve. Today the forest administers over 2.1 million acres of some of the most remote forestland in the lower 48 states, and there are over 1,000 lakes and 3,000...
  
  
• Sawtooth National Recreation Area
  Sawtooth National Recreation Area
  The Sawtooth National Recreation Area is a National Recreation Area located in central Idaho, within the Boise, Challis, and Sawtooth National Forests. The recreation area is managed by the U.S. Forest Service and includes the Sawtooth Wilderness...
  
  
• Sawtooth Range (Idaho)
  Sawtooth Range (Idaho)
  The Sawtooth Range is part of the Rocky Mountains, located within a few miles south of Stanley, Idaho, in the Western United States. Much of mountain range is within the Sawtooth Wilderness, part of the Sawtooth National Recreation Area...