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King County and partners will plant 1 million trees by 2020 across King County in both urban and rural areas. It will take a lot of hard work – and a lot of outdoor fun. One way you can get involved is to volunteer.

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Get outside this winter and volunteer

Join King County Parks and help improve some of the awesome parks, trails and natural areas within the 28,000 acres of Your Big Backyard! Check out the calendar below for upcoming volunteer events over the next five weeks.

Help us build forests

We're doing our part in King County's effort to plant 1 Million Trees by 2020 to reduce carbon pollution and prepare for impacts of climate change, one of the actions outlined in the 2015 Strategic Climate Action Plan.

Help us reach this goal while also restoring habitat for fish and wildlife and enhancing recreation opportunities for all of us.

Reason #1,243,500 why trees are awesome

As The Nature Conservancy of Washington says..."New research shows that trees communicate with one another and share nutrients through their roots! They need each other. In urban areas, trees also give us health, economic and social benefits. They are part of past and present cultures. We need them. So, how can we return the favor?"

Watch their video The Power of Trees to learn more!

Calendar of Events

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

To join an event, please register with the volunteer coordinator listed after each event.

  • November 18
    Wetland 14 (Renton / Maple Valley)

    Come plant around an old peat bog that was excavated in the 1950s and has become a pond. We recently purchased the last in-holding property to complete the protection of this land and will be planting this area with native plants.

    Contact Tina Miller.

  • November 18
    Cedar Creek Park (Maple Valley)

    *Event is 9:00 a.m. to noon

    Volunteer at this fantastic forested park and help do trail maintenance to prepare for winter. Cedar Creek Park is a peaceful place to walk through the woods and enjoy nature. Join Parks & Trails Ambassador Clare to learn about and help this special place

    Contact Laurie Clinton.

  • December 2
    Whitney Bridge (east of Auburn)

    Looking for a family event? This is it!

    Located along the Green River, Whitney Bridge offers a view of salmon returning up river. We will be planting native trees and shrubs to convert former pasture land into a forested buffer along the river.

    Contact Tina Miller.

  • December 2
    Lake Geneva Park (Auburn / Federal Way)

    Join us in planting native trees and shrubs in the forested area around Lake Geneva. We will be planting trees and moving woodchip mulch to increase the ecological value of the park.

    Contact Lina Rose

  • December 2
    Marymoor Park Birdloop (Redmond)

    Help improve and maintain bird and wildlife habitat along the serene BirdLoop Trail and Meadow at Marymoor Park with our partner, Eastside Audubon Society, at their monthly work party. This is an ongoing volunteer service that greatly benefits birds and wildlife in Marymoor Park.

    (Chestnut-backed Chickadee Photo courtesy of EAS member Mick Thompson)

    Contact Laurie Clinton.

  • December 9
    Maplewood Heights Park (Renton)

    Join us restore a corner of Maplewood Heights Park behind Liberty High School. We will be planting native trees and shrubs and moving woodchip mulch to make this entrance to the park beautiful and healthy.

    Contact Lina Rose.

  • December 9
    Carnation Marsh (Carnation)

    Come out and help diversify the ecology of the wetland by staking the area with willows and cottonwoods to help reduce invasive reed canary grass. This 90-acre complex is a wonderful birding spot in the Snoqualmie Valley.

    Contact Tina Miller.

  • December 16
    Marymoor Connector Trail (Redmond)

    This planting will add diversity to the wetland area along one of the trail in Marymoor Park. A great event for families, as the planting site and work is very accessible to people of all ages and abilities.

    Contact Lina Rose.

  • December 16
    Wetland 14 (Renton/Maple Valley area)

    Come plant around an old peat bog that was excavated in the 1950s and has become a pond. We recently purchased the last in-holding property and will be planting this area with native plants.

    Contact Tina Miller.

Save the Date!

We are hosting several volunteer projects in honor of Martin Luther King Jr. Day of Service, in partnership with United Way of King County. Contact Lina Rose to volunteer at Big Finn Hill Park in Kirkland and Tina Miller to volunteer at Whitney Bridge east of Auburn.

Backcountry trail work parties with WTA

Give back to those trails that you love! Join King County Parks and the Washington Trails Association this winter and spring to rebuild and repair our backcountry trails. Tasks include retreading a trail, building a turnpike, or addressing drainage problems.

Note: These events require hiking to more remote work sites. Events are limited to 20 people, with typically 6-12 volunteers.

Work parties happen Tuesdays - Saturdays, 8:30 a.m. to 3:00 p.m.

November 21-22, 25 Tolt MacDonald Campground & Park (Carnation)

November 28 - December 2 Tolt MacDonald Campground & Park (Carnation)

December 5-9 Grand Ridge Park (Issaquah)

December 12-16 Tolt MacDonald Campground & Park (Carnation)

December 19-22 Grand Ridge Park (Issaquah)

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