| Alturas Lake | |
| Coords: | 47.6399°N -121.2604°W |
| Outflow: | East Fork Foss River[1] |
| Basin Countries: | United States |
| Elevation: | 1942feet |
| Pushpin Map: | Washington#USA |
| Pushpin Map Alt: | Location of Aluras Lake in Washington, USA. |
Alturas Lake is a freshwater lake located on the northern slope of Bald Eagle Peak, in King County, Washington.[2] Alturas Lake drains North towards Tonga Ridge and into the East Fork of the Foss River.[3]
Access to Alturas Lake is through Necklace Valley Trail #1062 off Foss River Road (Forest Service Road #68), which exits US Highway 2 approximately at mile marker 50.5, just east of the Skykomish Ranger Station. The trail ends in Jade Lake further East from Alturas Lake. Self-issued Alpine Lake Wilderness permit required for transit within the Necklace Valley area.[4]