- Sprague Lake is a lake in Washington, straddling the border of Adams and Lincoln counties. It is two miles west of the town of Sprague. Sprague Lake is drained by Cow Creek, a tributary of the Palouse River. The lake was originally called Lake Colville.
- Black Diamond, Washington (Wikipedia)
Black Diamond is a city in King County, Washington, United States. The population was 4,697 at the 2020 census. In 2023, with a 40.6% growth rate, Black Diamond was the fastest growing small city in King County.