Aerial Detection Surveys (ADS)

Every year since 1947, aerial detection surveys (ADS) have recorded the insects and diseases affecting forests in Oregon and Washington. These annual surveys are cooperative efforts by the Forest Health staffs of the Washington Department of Natural ResourcesOregon Department of Forestry, and the USDA Forest Service Forest Health Protection staff.


Screenshot of a ArcGI map view with areas that are clickable for data.

Data Viewer

View the most current Aerial Detection Survey Data on an interactive Geospatial mapping interface. 

Screen shot of data polygons.

Data Download

Download Aerial Detection Survey Data (1947-present).

clickable map allowing view to select 2012 ADS map for a specific quad

Quad Maps

View or Download ADS Quad Maps (2003-present).
Screen shot of flight line patterns in a colored image over state of Oregon

Flight Line Maps

View flight lines showing the paths of the survey aircraft for each year, color-coded by date.

Maps available at the links above can be by downloaded for viewing/printing or may be used with the Avenza PDF Maps Mobile App. This application is a geospatial reader for Apple and Android mobile devices and allows for interaction with spatially referenced maps to view your location, record GPS tracks, add placemarks, and find places.  (Note:  To export georeferenced .pdf maps from the Cumulative Tree Mortality and Data Viewer, select the Tools tab in the dialogue box, then select the 'MAP_ONLY' option under the 'Print' dropdown menu.  When the export is complete, click the 'Printout' link to open the exported map in your browser.)

Summary reports: Aerial survey observations and other data have been summarized in Forest Health HighlightsForest Insect and Disease Conditions, and other related reports.

Contact Us

If you have any questions or comments regarding these maps or the information they provide, we would like to hear from you:

Justin Hof - Washington State Aerial Survey Coordinator, Forest Service Regional Office

Karen RipleyForest Entomologist and Forest Health Program Manager, Forest Service Regional Office, State and Private Forestry

You may also contact your local Forest Health Protection (FHP) Service Center for more information. There are five service centers in Oregon and Washington providing assistance to federal resource managers. These offices are located in: Wenatchee, Washington; Bend, La Grande, Medford, and Sandy, Oregon.