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2040 84th Avenue SE
Mercer Island, WA 98040
Phone: 206.275.7609
Fax: 206.275.7868
Email: miparks@mercergov.. . .
Hours: 8:30 am - 5:00 pm
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Forest Management Plan

The Pioneer Park Forest Management was adopted by the Open Space Conservancy Trust in 2003. It has been the guiding document on all volunteer and contracted work in the forest of Pioneer Park since then. In 2008, the Trust conducted a Forest Health Survey of Pioneer Park to quantify tree populations and prevalence of non-native invasive plants. The results of this study caused the Trust to amend the Forest Management Plan and append it with the Forest Health Survey and the associated work plan.

  • Printable copy of the Pioneer Park Forest Management Plan 2008 update
  • Printable copy of Appendices A-E to the Forest Management Plan (3MB)
  • Printable copy of Appendices F-Q to the Forest Management Plan (3.5MB)
  • Printable copy of Pioneer Park Forest Health Survey (Appendix R)
  • Printable copy of Pioneer Park Forest Health Work Plan maps (Appendix S)



The final Pioneer Park Forest Management Plan (below) as presented here was adopted by the Open Space Conservancy Trust at its November 6th, 2003 meeting. It was approved subsequently by the Mercer Island City Council on December 15th, 2003. It contains all of the components of the draft plan that was presented to public in September 2003. Several components have been either added or modified in response to feedback from the public review process that was conducted.

New project work will begin in 2004 to control invasive plants and establish new trees in the northwest and southeast quadrants. Parks and Recreation staff and the Open Space Conservancy Trust board are seeking partnerships with community volunteers for these projects to extend available funds. Please contact us at 206.275.7833 if you would like to help.

With the completion of the Pioneer Park Forest Management Plan, planning work for the park has concluded. Pioneer Park Master Plan (Part 1) and Pioneer Park Master Plan (Part) 2 develops the recreational features of the park, while the Forest Management Plan protects the natural resources of the park.

The following ten documents contain the entire text of the Pioneer Park Forest Management Plan. Each document can be downloaded individually at the bottom of this page. Part 1 is the main body of the plan and should be read first. Part 9 outlines the projects planned for the park. This is likely to be most interesting to the general public.



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