| Frog Lake | |
| Location: | Custer County, Idaho |
| Coords: | 44.0791°N -114.5457°W |
| Lake Type: | Glacial |
| Outflow: | Little Boulder Creek to East Fork Salmon River |
| Basin Countries: | United States |
| Length: | 340m (1,120feet) |
| Width: | 210m (690feet) |
| Elevation: | 2710m (8,890feet) |
| Pushpin Map: | Idaho#USA |
| Pushpin Map Alt: | Location of Frog Lake in Idaho, USA. |
Frog 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 047.[1]
Frog Lake is just upstream of Little Frog Lake and surrounded by marshes, which support a large breeding area for Columbia Spotted Frog and Western toads.