Original 1952 aerial survey map of the Deschutes National Forest showing areas of insect-cuased tree mortality and defoliation.

Note: This map and the other hard-copy historical aerial forest insect and disease detection survey maps and microfiche are filed with the Aerial Survey Program at the Mt. Hood National Forest Headquarters in Sandy, Oregon. Data shown on these historical maps have been digitized and are available as part of a complete dataset (1947-2017) covering all forested lands in the states of Oregon and Washington from the link below.

Photo by: Unknown Map creation date: 1952

Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Collection: Region 6, Forest Health Protection, Aerial Survey Program slide collection.

For geospatial data collected during annual aerial forest insect and disease detection surveys see: <a href="https://www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-diseases/?cid=stelprdb5286951" rel="nofollow">www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-...</a>

For related historical program documentation see: <a href="https://archive.org/details/AerialForestInsectAndDiseaseDetectionSurveysInORandWA19472016TheSurveyHighRes" rel="nofollow">archive.org/details/AerialForestInsectAndDiseaseDetection...</a> Johnson, J. 2016. Aerial forest insect and disease detection surveys in Oregon and Washington 1947-2016: The survey. Gen. Tech. Rep. R6-FHP-GTR-0302. Portland, OR: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. 280 p.

Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: <a href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth" rel="nofollow">www.fs.usda.gov/main/r6/forest-grasslandhealth</a>

This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. English ∙ español ∙ Nederlands ∙ slovenščina ∙ Tiếng Việt ∙ македонски ∙ русский ∙ українська ∙ 日本語 ∙ +/−