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The City of Portland, Oregon

Portland Parks & Recreation

Healthy Parks, Healthy Portland

Phone: 503-823-7529

1120 SW Fifth Avenue, Portland, OR 97204

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Apply to Inventory Park Trees in Your Neighborhood

Steps of an inventory


Thank you for your interest in organizing your Tree Team to conduct a Park Tree Inventory. The Tree Inventory Project is a long-term project, and requires a dedicated group of community members to organize and work together. 

2019 is the final year of Park Tree Inventory! Below is the list of parks where we'll be holding volunteer workdays this summer, and we need your help! If you see your neighborhood park below and want to get involved recruiting your neighbors, contact us at

2019 Inventory Parks

  • Glenhaven Park
  • Grant Park
  • Hillsdale Park
  • Pearl District: Jamison Square, Tanner Springs, The Fields, and the North Park Blocks
  • Mt. Scott Park
  • Sellwood and Sellwood Riverfront Parks
  • Wellington Park
  • Westmoreland Park
  • Woodlawn Park
  • Woodstock Park

To see a map of 2019 Park Tree Inventory sites, click here.

Steps of a park inventory

  1. Before the inventory: Neighborhood Tree Teams (or a group tree-loving neighbors) begin by organizing their group and selecting a park to organize recruitment efforts for. Neighborhood organizers attend a planning workshop, and then begin recruiting volunteers for workdays. 

  2. During the inventory: A Team Leader Training is held to train volunteers in the parks tree inventory protocol.  Park inventory workdays – typically 2 per park  – begin soon after and continue throughout the summer. Neighborhood organizers help set-up and clean-up for each workday, and Urban Forestry provides staff coordination, refreshments, and supplies for workdays. At workdays, a trained team leader is paired up with untrained volunteers to complete data collection sections, and a volunteer arborist is available for tree identification questions. Neighborhood organizers continue to recruit volunteers as needed for workday events throughout the summer.

  3. After the inventory: Urban Forestry staff review findings with neighborhood organizers and build an online, interactive tree map of their park. The public is invited to attend the annual Tree Summit to celebrate our work and discuss inventory-wide findings. This Summit is also a time for neighborhoods to form Tree Teams and continue work on Neighborhood Tree Plans that state short and long term goals for tree care, as well as actions to meet goals. After the Summit, Teams continue to meet on their own. Urban Forestry provides staff support, expertise, and event coordination for tree care actions.

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Project Timeline

  • March 1, 2019: Neighborhood organizers agree to "adopt" a park for 2019
  • May 2019 : Parks tree inventory planning workshop for organizers
  • May – June: Volunteer recruitment
  • June 2nd: Team Leader Training on inventory protocol
  • June – September: Data collection at inventory work days
  • August - October: Data compilation and analysis; Urban Forestry and Tree Teams work to create online maps of 2019 inventories
  • October: Inventory results presented at Tree Summit
  • Year round: Ongoing tree team meetings and activities to meet Tree Plan goals. Urban Forestry to assist with planning work days or events. 

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