1970. Bob Dolph (left) and Tommy Gregg using infrared film on the mountain pine beetle project. La Grande Ranger District, Wallowa-Whitman National Forest, Oregon.
Bob Dolph (left) and Tommy Gregg using infrared film on the mountain pine beetle project. La Grande Ranger District, Wallowa-Whitman National Forest, Oregon.
Photo by: Peter W. Orr
Date: August 1970
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-839
Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
1970. Bob Dolph (left) and Tommy Gregg using infrared film on the mountain pine beetle project. La Grande Ranger District, Wallowa-Whitman National Forest, Oregon.
Bob Dolph (left) and Tommy Gregg using infrared film on the mountain pine beetle project. La Grande Ranger District, Wallowa-Whitman National Forest, Oregon.
Photo by: Peter W. Orr
Date: August 1970
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-839
Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth