| Island Lake | |
| Location: | Custer County, Idaho |
| Coords: | 44.0951°N -114.5941°W |
| Lake Type: | Glacial |
| Outflow: | Big Boulder Creek to East Fork Salmon River |
| Basin Countries: | United States |
| Length: | 400m (1,300feet) |
| Width: | 125m (410feet) |
| Elevation: | 2525m (8,284feet) |
| Islands: | 1 |
| Pushpin Map: | Idaho#USA |
| Pushpin Map Alt: | Location of Island Lake in Idaho, USA. |
Island 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 trail 806.[1]
Island Lake is southwest of D. O. Lee Peak and southwest of Goat Lake, although not in the same sub-basin. There is one small island on the lake near the eastern shore.