2025 Forest Health Report

Colorado enhances forest health through science, strong partnerships

Colorado’s forests are central to our state’s economy, identity and way of life. They are living, dynamic ecosystems shaped by fire, weather, people and insects. Today, one of those insects is once again making its presence felt. Along the Front Range, a new outbreak of mountain pine beetles is underway in ponderosa pine forests that already have a high risk for wildfire, where many Coloradans live, work and play.

In this report, we explore the conditions influencing this outbreak of mountain pine beetles on the Front Range, the impacts that it could have on forests and wildfire, and how we are addressing the issue. We also track where bark beetles and other forest pests are expanding their footprints in forests across Colorado. Finally, we shift the focus to cities and towns to highlight the wave of new detections of emerald ash borer in 2025 in urban forests.

Colorado continues to prioritize forest health and resilience and deploys successful programs throughout the state to protect the many benefits that forests provide. The Polis Administration has invested more than $165 million in forest management and wildfire readiness with support from the Colorado General Assembly. In December, Gov. Polis launched a task force and other initiatives to help address the mountain pine beetle outbreak on the Front Range.

These investments and focus come at a good time. Despite welcome spring rain and snow, Colorado’s forests are stressed after a record warm, dry winter and are primed for further spread of mountain pine beetles, other forest health issues and increased wildfire risk.

In Colorado, we embrace a shared stewardship approach to enhancing forest health through strong partnerships grounded in science-based practices. Join us as we work to create more resilient forests and communities. Together, with your support, we will steward our forests, so they benefit Coloradans for many years to come.

– Dan Gibbs, Colorado Department of Natural Resources Executive Director
– Matthew M. McCombs, State Forester and Colorado State Forest Service Director