Type Glacial Max. length 0.19 mi (0.31 km) Surface elevation 2,608 m Width 270 m Number of islands 1 | Basin countries United States Max. width 0.17 mi (0.27 km) Length 310 m Outflow location Boise River | |
Primary outflows Johnson Creek to Middle Fork Boise River | ||
Rock Island Lake is a small alpine lake in Elmore County, Idaho, United States, located in the Sawtooth Mountains in the Sawtooth National Recreation Area. The lake is accessed from Sawtooth National Forest trail 459 along Johnson Creek.
Map of Rock Island Lake, Idaho 83716, USA
Rock Island Lake is in the Sawtooth Wilderness, and a wilderness permit can be obtained at a registration box at trailheads or wilderness boundaries. There is a single rocky island that is less than 200 ft (61 m) long that gives the lake its name.
References
Rock Island Lake Wikipedia(Text) CC BY-SA