Map Disclaimer: Due to the nature of aerial surveys, data on this map only provide rough estimates of location, intensity and the resulting trend information for agents detectable fr om the air. Many of the most destructive diseases are not represented on this map because these agents are not detectable from aerial surveys. Data presented on this map should only be used as partial indicators of insect and disease activity and should be validated on the ground for actual location and causal agents. Shaded areas show locations where tree mortality or defoliation was apparent from the air. Intensity of damage varies and not all trees in shaded areas are dead or defoliated.

Data Disclaimer: The USDA Forest Service makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, and assumes no legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. The data and maps may not be used to determine title, ownership, legal descriptions or boundaries, legal jurisdiction, or restrictions that may be in place on either public or private land. Natural hazards may or may not be depicted on the data and maps, and land users should exercise due caution. The data are dynamic and may change over time. The user is responsible to verify the limitations of the geospatial data and to use the data accordingly.

Region 8 Forest Health Monitoring 2020 Summary