Lake Sawyer is the fourth largest natural lake in King County with a surface area of 286.1 acres. The lake is located two miles northwest of Black Diamond and lies within the Big Soos Creek Basin of the Green River Watershed. The lake is used extensively for boating, water skiing, swimming and fishing. Public access is provided at the King County Lake Sawyer Park on the northwest side of the lake, and the newly acquired County Park in the southern part of the lake. The City of Black Diamond annexed the lake and surrounding homes in 1998. The City of Black Diamond is on the verge of significant expansion and growth which could have significant impacts on the water quality of Lake Sawyer.

The description above was copied from or heavily based on Swim Guide, with permission.

More Information

• Swim Guide - Weather and water quality for Lake Sawyer and 8,000 other beaches.