| Fourth of July Lake | |
| Location: | Custer County, Idaho |
| Coords: | 44.0432°N -114.6311°W |
| Lake Type: | Glacial |
| Outflow: | Fourth of July Creek to Salmon River |
| Basin Countries: | United States |
| Length: | 275m (902feet) |
| Width: | 183m (600feet) |
| Elevation: | 2860m (9,380feet) |
| Pushpin Map: | Idaho#USA |
| Pushpin Map Alt: | Location of Fourth of July Lake in Idaho, USA. |
Fourth of July 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 109.[1]
Fourth of July Lake is just west of Patterson Peak, northeast of Fourth of July Peak, and northwest of Washington Lake, although Washington Lake is in a separate basin.