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About Boulder Forestry

Boulder Forestry manages approximately 51,000 public trees in city parks and street rights-of-way.

​We are committed to maintaining a healthy and safe urban forest as well as preserving an extensive and diverse tree cover for future generations. A benefit of a healthy urban tree canopy is maximizing the visual, social, economic, health and environmental services this natural resource has to offer for our residents and visitors. These efforts have earned the City of Boulder the Tree City USA designation by the National Arbor Day Foundation since 1984.

Our responsibilities include:

Public Tree Maintenance

Planting, pruning, watering, removing, and inspecting trees that grow in public street right of ways and city parks.

Public Tree Planting Programs

Street tree requests , memorial tree planting, and other tree planting plans.

Tree Safety Inspection Program (TSIP)

Monitoring, inspection, and hazard mitigation of trees with known defects.

Integrated Pest Management (IPM)

Long term prevention of pest problems while minimizing the impact on human health, the environment, and non-target organisms.

Commercial Tree Program

Funding and management of trees in commercial districts such as the Pearl Street Mall.

Storm Damage Response

Assessment and hazard mitigation of public tree damage after major storm events. Service Request

Managing Arborist Licensing

Assistance in the process to become a Licensed Arborist Contractor or a Licensed Tree Contractor.

Education and Outreach

Providing Boulder centric advice and resources to community members.

Maintain a Public Tree inventory

We collect data on the public trees for analysis and planning.


Boulder Notable Tree Tour

This map highlights just a few of Boulder's special or 'notable' trees. A tree may be 'notable' if it is related to a famous or historical person, place, or event. A tree may also be notable if it is a unique species, contributes to the community, or is part of the Colorado Tree Coalition's Champion Tree Program making it among the largest of its species in Colorado. More trees will be added so come back to check out the map!
View the Notable Tree Tour in Full Screen

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Urban Forest Strategic Plan

The Urban Forest Strategic Plan will make recommendations for urban tree management for city parks and street rights-of-way.

Emerald Ash Borer Overview

Learn more about Emerald Ash Borer's presence in Boulder and what you can do about it. EAB is a federally quarantined, invasive tree pest.

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For more information please contact Kathleen Alexander, City Forester at 303-441-4406 .