Forest Health Index

Monitoring the health of Colorado's forest

Healthy forests are essential for a healthy Colorado and forest health depends on a stable climate and robust ecosystems. The Forest Health Index (FHI) tracks these conditions for 38 forested watersheds across Colorado. We monitor 12 indicators of forest health, such as temperature, precipitation, and fire risk. Each year we compare present and historic conditions. We assign each indicator a score based on how much current conditions differ from the past. We invite you to find your watershed and see how conditions have changed over the past 40 years.