The Black Hills are a small range of hills in Thurston and Grays Harbor counties of Washington. They are widely considered a subset of the Willapa Hills, however, the line parent of the Black Hills is Rock Peak, in the Olympic Mountains.[1] 2,664-foot (812 m) Capitol Peak is the highest peak in the range.
The Black Hills takes its name from the Black River.[2] A former variant name was "Black Mountains".[3]