Lake Mayfield

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title: "Lake Mayfield" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["lakes-of-lewis-county,-washington", "reservoirs-in-washington-(state)", "protected-areas-of-lewis-county,-washington", "tacoma-public-utilities"] description: "Lake in Washington state, U.S." topic_path: "general/lakes-of-lewis-county-washington" source: "https://en.wikipedia.org/wiki/Lake_Mayfield" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Lake in Washington state, U.S. ::

::data[format=table title="Infobox body of water"]

Field	Value
name	Lake Mayfield
image	File:Mayfield Dam and Lake Mayfield - Cowlitz River - Washington State 01.jpg
caption	Lake Mayfield and Mayfield Dam
location	Lewis County, Washington, U.S.
coords
type	reservoir
inflow	Cowlitz River, Tilton River
outflow	Cowlitz River
basin_countries	United States
elevation	427
islands	1, Harold Freece Island
pushpin_map	Washington#USA
pushpin_map_alt	Location of Lake Mayfield in Washington, USA.
::

| name = Lake Mayfield | image = File:Mayfield Dam and Lake Mayfield - Cowlitz River - Washington State 01.jpg | caption = Lake Mayfield and Mayfield Dam | image_bathymetry = | caption_bathymetry = | location = Lewis County, Washington, U.S. | coords = | type = reservoir | inflow = Cowlitz River, Tilton River | outflow = Cowlitz River | catchment = | basin_countries = United States | length = | width = | area = | depth = | max-depth = | volume = | residence_time = | shore = | elevation = 427 | islands = 1, Harold Freece Island | cities = | pushpin_map = Washington#USA | pushpin_label_position = | pushpin_map_alt = Location of Lake Mayfield in Washington, USA. | pushpin_map_caption = | website = | reference = Lake Mayfield is a reservoir located near Mossyrock, Washington, in Lewis County. It was created by Mayfield Dam on the Cowlitz River, one of the dams in the Columbia River watershed.

History

The Mayfield Dam was constructed in 1963 as a concrete arch and gravity dam. At 250 ft high and capable of generating 162 megawatts, it supplies Tacoma Power with a large percentage of its entire hydroelectric power supply, second only to Mossyrock Dam.

Environment and ecology

The lake is home to tiger muskies. Tiger muskies were introduced in 1993 to help control northern pikeminnow (squawfish) populations. In 1997, after an act of vandalism that destroyed a bald eagle nest near the lake, an artificial nest was built with help from a Boy Scout troop from Shoreline.

Recreation

The Cowlitz River Arm is significantly colder than the rest of the lake due to its proximity to the Riffe Lake which is created by Mossyrock Dam. The water from Riffe Lake flows through the Mossyrock Powerhouse's two hydroelectric generators. The Tilton River arm is much warmer and shallower due to past landslides. Ike Kinswa State Park is located on a peninsula bounded by the Cowlitz River and the Tilton River. The lake contains an island with a lighthouse.

Throughout the 1980s and 1990s, there were many water ski and wake board tournaments held on the lake's Winston Creek arm where the Lake Mayfield Resort is located. The Mayfield Lake Youth camp is located up the Winston Creek arm adjacent to the Winston Creek Falls.

References

References

1. "TPU Power Mayfield Dam".
2. "Mayfield Lake". [[Washington Department of Fish and Wildlife]].
3. (February 2, 1997). "Eagles Watch Humans Replace Vandalized Nest". [[The Seattle Times]].
4. "Ike Kinswa State Park, a Washington State Park".
5. "Lowland lakes {{!".

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::