Osoyoos Lake

Osoyoos Lake
Osoyoos Lake
Osoyoos Lake
Osoyoos Lake
Osoyoos Lake
LocationRegional District of Okanagan-Similkameen, British Columbia / Okanogan County, Washington
Coordinates49°0′1.16″N 119°26′44.13″W / 49.0003222°N 119.4455917°W / 49.0003222; -119.4455917
Basin countriesCanada, United States
Surface area5,729 acres (2,318 ha)
Surface elevation912.78 ft (278.22 m)
SettlementsOsoyoos, British Columbia; Oroville, Washington

Osoyoos Lake is a lake located in British Columbia, Canada, and Washington, United States. Osoyoos is derived from the word sẁiẁs meaning "narrowing of the waters" in the local Okanagan language (Syilx'tsn).

Located on the lakeshore are the town of Osoyoos, British Columbia and city of Oroville, Washington. The lake's maximum elevation is 912.78 ft (278.22 m), while its minimum elevation is 909.46 ft (277.20 m). The 62-year average discharge into the Okanogan River at Oroville is 683 cu ft/s (19.3 m3/s). Maximum discharge in 2004 was 1,340 cu ft/s (38 m3/s). Oroville's Osoyoos Lake State Park is located on its shore.