<p>Cessna 170-B aerial survey plane sketch mapping Douglas-fir beetle damage. Near Sutherlin, Oregon.
</p><p>Photo by: Thomas C. Adams
Date: July 1952
</p><p>Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection.
Collection: Portland Station Collection; La Grande, Oregon.
Image: PS-1011
</p><p>To learn more about this photo collection see: 
Wickman, B.E., Torgersen, T.R. and Furniss, M.M. 2002. Photographic images and history of forest insect investigations on the Pacific Slope, 1903-1953. Part 2. Oregon and Washington. American Entomologist, 48(3), p. 178-185.
</p><p>For additional information see:
Greeley, A.W., Wright, K.H. and Pope, R.B. 1953. Final report on the 1952 blowdown bark beetle survey in the Douglas-fir region of Oregon and Washington. USDA Forest Service, Pacific Northwest Forest and Range Experiment Station. Portland Forest Insect Lab. 
</p><p>For geospatial data collected during annual aerial forest insect and disease detection surveys see: <a rel="nofollow" class="external text" href="https://www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-diseases/?cid=stelprdb5286951">www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-...</a> 
</p><p>For related historic program documentation see:  
<a rel="nofollow" class="external text" href="https://archive.org/details/AerialForestInsectAndDiseaseDetectionSurveysInORandWA19472016TheSurveyHighRes">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. 
</p>
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: <a rel="nofollow" class="external text" href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth">www.fs.usda.gov/main/r6/forest-grasslandhealth</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/151887236@N05">R6, State &amp; Private Forestry, Forest Health Protection</a>
Taken in July 1952
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/151887236@N05/33456764176/">1952. Cessna 170-B survey plane mapping Douglas-fir beetle damage near Sutherlin, OR.</a>