L-R: H.B. Rudolph, Jim Dolan, Warren V. Benedict. Malheur National Forest, Oregon.
Photo by: Robert E. Dolph Date: September 1966
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Division of Timber Management, Insect and Disease Control Branch Collection; Regional Office, Portland, Oregon. Image: ID-541