<p>DC-2 and TBM spray planes at airport. Bureau of Land Management western spruce budworm spray project. Dillon, Montana.
</p><p>Photo by: Unknown
Date: July 1966
</p><p>Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: FHP slide collection; Region Office; Portland, Oregon
</p>
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: &lt;a href="<a rel="nofollow" class="external free" href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth">https://www.fs.usda.gov/main/r6/forest-grasslandhealth</a>" rel="nofollow"&gt;www.fs.usda.gov/main/r6/forest-grasslandhealth&lt;/a&gt;
<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 1966
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/151887236@N05/35260685713/">1966. DC-2 and TBM spray planes at airport. Bureau of Land Management western spruce budworm spray project. Dillon, Montana.</a>