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Outdoor volunteer events

Come volunteer to help improve King County's stream corridors and urban forests by planting native trees and shrubs to improve the area for wildlife and water quality.

Events are on Saturdays from 10 a.m. to 2 p.m. unless otherwise noted*

To join a planting event, please register with the volunteer coordinator listed with each event.

  • February 25
    Three Forks Natural Area (Snoqualmie) 
    Come join us to plant along the Middle Fork of the Snoqualmie River at Three Forks Natural Area just under Mt. Si.
    Contact Tina Miller.
  • March 4
    Marymoor Park Birdloop Trail (Redmond)
    Eastside Audubon's monthly work party. Priority for this work party will be to get the native hawthorn trees planted. Your help will make the meadow even better for birds and wildlife habitat.
    Contact Lina Rose.
  • March 4
    North Shorewood Park (White Center)
    Join neighbors of North Shorewood Park and King County staff as we work together to restore the health of this awesome community forest in White Center, just south of West Seattle. We will be working on removing invasive plants from around native plantings and moving some wood-chip mulch to protect those native plantings.
    Contact Lina Rose.
  • March 11
    Fall City Park (Fall City)
    Join us as we continue to restore Fall City Park! Learn about native plants with the Snoqualmie Indian Tribe while getting a chance to plant trees and shrubs to help establish a new forest. The goal is to restore the park to improve habitat for salmon and other wildlife for generations to come.
    Contact Laurie Clinton.
Get outdoors

Backcountry trail work

Give back to those trails you love! Join King County Parks and the Washington Trails Association this fall and winter to rebuild and repair backcountry trails.  Learn to retread a trail, build a turnpike or solve drainage problems.

To register contact Washington Trails Association (WTA) at or call 206-965-8561. Please note that this event requires hiking to the site; event is limited to 20 people and typically would be 6-12 volunteers in size.

Events are Tuesdays - Saturdays, 8:30 a.m. to 2:30 p.m.

  • February 28-March 4
    Taylor Mountain Forest
  • March 7-11
    Taylor Mountain Forest
  • March 14-18
    Squak-Cougar Connector
  • March 21-25
    Squak-Cougar Connector
  • March 28-April 1
    Grand Ridge Park

Other volunteer opportunities

Miller and Walker Creeks volunteer calendar
Plant native trees and shrubs, pull invasive, non-native plants and clean up litter at these Puget Sound creeks.

Native plant holding facility
Groups are needed to care for salvaged native trees and shrubs at our holding facility near Sammamish. To schedule a group work party, please contact Cindy Young.

Adopt-a-Park or Trail & Park Ambassador Programs
These programs provide opportunities for groups or individuals to help maintain King County's 180 parks, 175 miles of regional trails, and 130 miles of backcountry trails.  For more information please contact Laurie Clinton, volunteer program manager.

Salmon counts and habitat restoration

  • Miller and Walker Creeks Stewardship 
  • Help restore these creeks in SW King County, pick up litter and pull noxious weeds.
  • Volunteer for Salmon!
  • Green River habitat restoration - students needed! Learn about restoring habitat while planting trees and shrubs. Groups of volunteers are needed for restoring habitat along the Green River. Weekdays preferred. 4th grade and up. Please contact John Koon.

Volunteer Lake Stewardship Program
Get outside to help monitor water quality at select lakes in King County.

Be a Weed Watcher
Sign up to adopt a trail or lake , keep an eye out and enter weed survey data and locations.

Master Recycler Composter Program
Sign up for free training to learn about waste reduction, recycling, solid waste impacts on climate change and public outreach, and help other citizens reduce waste.

For more information about volunteering in King County, please contact Laurie Clinton, Volunteer Coordinator, King County Parks and Recreation Division.