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 Resources, Oregon Department of Forestry, and the USDA Forest Service Forest Health Protection staff.

 OR and WA survey aircraft

Digital data from these annual surveys are available from 1947 through the present year and maps are available from 2003 through the present year.

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.)

A data dictionary describes the available data files and their contents.  View  flight lines showing the paths of the survey aircraft for each year, color-coded by date. Learn more about current aerial surveys.

Aerial survey observations and other data have been summarized in Forest Health Highlights,  Forest 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:

Ben Smith - Aerial Survey Program Manager & Unit Aviation Officer

(, 503-668-1761)

Bob Schroeter - Oregon Aerial Survey Coordinator

(, 541-858-6123)

Justin Hof - Washington Aerial Survey Coordinator

(, 503-668-1646)

 Zack Heath - Geographic Information Systems Analyst

(, 503-808-2662)