Lake Martha (North)

Lake Martha (North) is located in the Seven Lakes area north of the Tulalip reservation. The lake is 62.9 acres in size and one of the deepest lakes in the county at maximum depth of 70 feet and an average depth of 33 feet. Lake Martha's immediate watershed, or the land area that drains into the lake, is large at 967.8 acres and is primarily undeveloped.

Recreational Opportunities

  • Boat Launch
  • Boating (No gasoline-powered motors)
  • Fishing
  • Lake Access
There is a public boat launch on the south end of the lake, as shown on the bathymetric maps below. Internal combustion motors are not allowed on Lake Martha (North) - see Snohomish County Code Title 12 and the Parks and Recreation Boating Regulations for more information.

Fishing Information

The Washington Department of Fish and Wildlife (WDFW) maintains informational pages for each lake in Washington that include: fish stocking schedules, fishing prospect calendars, and boat launch information.


Connect with Your Lake Community

Lake Martha (North) does not have a formal lake association. However, you may be able to connect with other lake area residents by looking for a Lake Martha (North) community group on NextDoor or Facebook.

Lake Health and Additional Resources

As part of Snohomish County's Lake Management Program, County staff and volunteer lake monitors have been tracking the health of Lake Martha (North) since 1990. 

Water Quality Database

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 Health Report Card
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 In Depth Health Report

In Depth Lake Health Report

​For more historical information on Lake Martha (North) please refer to:

​Maps​

View maps of Lake Martha (North) and the surrounding area, including the location of public access sites.


Watershed

Watershed Map
Area that drains to the lake
Bathymetry

Bathymetry Map
Depth contours of the lake
Satellite

Aerial Bathymetry Map
Depth contours of the lake with satellite images