Beaver Lake

Beaver Lake is a chain of interconnected lakes located in Sammamish, Washington including Beaver Lake 1 to the north, Beaver Lake 2, the largest lake and Long Lake (Beaver Lake 3) to the south. The lake’s 1,100 acre basin has many streams, wetlands and lakes including three 1-rated, unique and outstanding wetlands. The lakes drain to Laughing Jacobs Creek, which holds a run of Lake Sammamish kokanee salmon.

A 76-acre Beaver Lake Preserve is located on the north and west shores of Beaver Lake 1, and offers hiking trails and a connection to Soaring Eagle Park to the north.  An 83-acre public park is located on the west shore of Beaver Lake 2 and Long Lake, offering a beach, barbecue grills, picnic shelter, lodge, playing fields and an off-leash dog park. A public boat launch is located on the southeast shore of Beaver Lake 2, the middle lake. The lake is stocked with rainbow trout and also holds yellow perch and largemouth bass.

Beaver Lake recreation

• Beaver Lake recreation information  from King County's Small Lakes Recreation Guide (1.05 Mb file)
• Beaver Lake fishing
• Beaver Lake boat launch
• Beaver Lake Park
• Beaver Lake Preserve
• Hazel Wolf Wetlands - Washington Trails Association

Beaver Lake and watershed data

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Beaver Lake monitoring stations

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Beaver Lake bathymetry map

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Beaver Lake 1 (north)

• Watershed area: 324 acres
• Lake surface area: 12 acres
• Maximum depth: 55 feet
• Mean depth: 22 feet
• Beaver Lake 1 water quality data

Beaver Lake 2 (middle)

• Watershed area: 1037 acres
• Lake surface area: 62 acres
• Maximum depth: 54 feet
• Mean depth: 21 feet
• Beaver Lake 2 water quality data

Wetlands

• East Lake Sammamish wetland 10 (Hazel Wolf wetlands)
• East Lake Sammamish wetland 21
• East Lake Sammamish wetland 35
• East Lake Sammamish wetland 57
• Appendix 1: Species key

Lake Management District

• Beaver Lake Management District (City of Sammamish) 

Outreach and educational materials

• Beaver Lake Monitor, summer 2018
• Beaver Lake and tributaries data

Geese

• The trouble with resident geese

Toxic algae

• Northwest toxic algae

Lake best management practices and lake data

• 50 ways to love your lake
• Green Shorelines
• Lakeside Living: healthy lawns healthy lakes
• Natural lawn care
• Small lakes data and info
• Lake Stewardship Program

Vegetation management

• Native plant guide
• Noxious Weed Program
• Water weeds: guide to aquatic weeds in King County
• WDFW aquatic vegetation management permit
• Aquatic Vegetation Survey Results
  • Survey map
  • Species list

Additional resources

• King County animals, plants and habitat
• Beaver Lake Community Club

News and announcements

For questions about lakes in King County, please contact lakes@kingcounty.gov or call the Water and Land Resources Division front desk at 206-477-4800.