Permafrost Tunnel Research Facility

Permafrost Tunnel – Fairbanks, Alaska - Atlas Obscura

Expansion of Permafrost Tunnel Research Facility completed nearly doubling its size

Crrel permafrost tunnel hi-res stock photography and images - Alamy

Permafrost tunnel Fairbanks Ak : r/alaska

Walkway in permafrost research tunnel, Alaska - Stock Video Clip - K011/8582 - Science Photo Library

Field trip to the CRREL Permafrost Tunnel Research Facility – Environmental Microbiology

CRREL permafrost research tunnel, Alaska, USA - Stock Image - C058/0312 - Science Photo Library

Permafrost Tunnel – Fairbanks, Alaska - Atlas Obscura