| Olallie Lake | |
| Location: | King County, Washington, United States |
| Coords: | 47.4226°N -121.5104°W |
| Basin Countries: | United States |
| Area: | 13.2acres |
| Elevation: | 3786feet |
| Pushpin Map: | Washington#USA |
| Pushpin Map Alt: | Location of Olallie Lake in Washington, USA. |
Olallie Lake is a freshwater lake located on a prominent valley at the western base of Pratt Mountain, between Mount Defiance and Bandera Mountain,[1] in King County, Washington.[2] The name means berry in Chinook Jargon.
Olallie Lake is surrounded by other alpine lakes, including Talapus Lake to the south and Pratt Lake a short distance north. Because of its proximity to Snoqualmie Pass and other prominent peaks in the Alpine Lakes Wilderness,[3] the lakes are a popular area for hiking, swimming, and fishing rainbow trout.[4]
Access to Olallie Lakes is through Mount Defiance Trail 1009, which is an offshoot of Pratt Lake Trail 1007.[5] The trail splits north to Pratt Lake and west towards Island Lakes.[6]
Access is also from Talapus Lake trail or Pratt Lake trail further east, a short exit from Interstate 90, west of the Snoqualmie Pass.