Permafrost Tunnel Research Facility
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Exploring CRREL's Permafrost Tunnel - David Rounce
Permafrost Tunnel – Fairbanks, Alaska - Atlas Obscura
Exploring CRREL's Permafrost Tunnel - David Rounce
Corps extends Permafrost Tunnel and Mission > Engineer Research and Development Center > News Stories
Field trip to the CRREL Permafrost Tunnel Research Facility – Environmental Microbiology
Foundation for Arctic Security > > Display
Permafrost Tunnel Research Facility - PTRF
DVIDS - Images - Permafrost Tunnel is world-renowned site for permafrost and climate research [Image 5 of 13]
Endangered Frontier: The destruction of thawing permafrost
Expansion of Permafrost Tunnel Research Facility completed nearly doubling its size
Biohabitats » Making Permafrost Real & Relevant
