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Group Tour

Led by Gary Larson, facility operations manager with the Cold Regions Research and Engineering Laboratory, a tour group walks through the U.S. Army Corps of Engineers Permafrost Tunnel on Sept. 12, 2019. Larson pointed out parts of the tunnel significant in research of permafrost and how it relates to climate change. The tour transported the group to a time dating back 40,000 years.

PHOTO BY: Daniel Nelson, Army
VIRIN: 190912-A-ZW424-1009M.JPG
FULL SIZE: 1.53 MB
Additional Details

CAMERA

NIKON D300S

LENS

18.0-200.0 mm f/3.5-5.6

APERTURE

35/10

SHUTTERSPEED

1/20

ISO

800

IMAGE IS PUBLIC DOMAIN

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This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.

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