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Anderson Lake (Jefferson County, Washington) facts for kids

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Anderson Lake
Anderson Lake State Park.jpg
Location of Anderson Lake in Washington, USA.
Location of Anderson Lake in Washington, USA.
Anderson Lake
Location in Washington (state)
Location Jefferson County, Washington, United States
Coordinates 48°01′08″N 122°48′04″W / 48.0188527°N 122.8012455°W / 48.0188527; -122.8012455
Type Lake
Basin countries United States
Max. length 3,057 ft (932 m)
Max. width 1,038 ft (316 m)
Surface area 57.3 acres (23.2 ha)
Max. depth 29 ft (9 m)
Water volume 1,228 acre⋅ft (1,500,000 m3)
Surface elevation 253 ft (77 m)

Anderson Lake is a 57-acre (23 ha) body of water lying 1.5 miles (2.4 km) west of Chimacum in Jefferson County, Washington. It is located in Section 9, Township 29N, Range 1W. Anderson Lake reaches a depth of 29 feet (8.8 m) at its deepest point and has a water volume of 1,228 acre feet (1,515,000 m3). The lake drains into Chimacum Creek and Port Townsend Bay. It is surrounded by Anderson Lake State Park. The lake's fish population includes lake-reared rainbow trout, that carry over to a second season from the initial spring fishery.

Toxic algae has caused the lake to be closed to all access on multiple occasions. The lake has annual cyanobacteria blooms dominated by dolichospermum (anabaena), aphanizomenon and microcystis. It is a major producer of anatoxin-a, a potent neurotoxin. County health officials have monitored local lakes for blue-green algae seasonally since 2007.


The lake was held in private hands until it was purchased by the Washington State Parks and Recreation Commission in 1969. The lake bears the family name of an earlier owner, Amanda Anderson.

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