Fox Permafrost Tunnel Extension Drilling to 15m
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Fox Permafrost Tunnel Extension Drilling to 15mThe World > North America > USA > Alaska |
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Drilling has progressed to 15 meters in the new extension to the Fox Permafrost Tunnel. The bottom of an ice wedge has become exposed near the current back face. Between each drilling run, measurements are made and samples taken.
Drilling of the tunnel extension has proceeded to 15 meters. Drilling was done in winter to keep the...
Drilling for the season was completed at about this depth into the new extension of the Fox Permafros...
Drilling has reached the 4 meter mark for the extension of the Fox Permafrost Tunnel, being drilled b...
These small survey stakes mark the entrance to an extension of the Fox Permafrost Tunnel before drill...
There are currently plans to expand the existing tunnel and extend it through the hillside in this di...
Through this gate is the entrance to the Permafrost Tunnel. The gate is locked as this is a federal ...
The permafrost tunnel has two branches -- this is the deeper one with lower ceiling. Here you c...
CRREL Permafrost Tunnel, 50 meters into the adit. Visit http://permafrosttunnel.crrel.usace.army.mil/...
CRREL Permafrost Tunnel, 45 meters into the winze. Visit http://permafrosttunnel.crrel.usace.army.mil...
CRREL Permafrost Tunnel, 70 meters into the adit. Visit http://permafrosttunnel.crrel.usace.army.mil/...
Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait. Approximately half of Alaska's 710,231 residents (as per the 2010 United States Census) live within the Anchorage metropolitan area. Alaska is the least densely populated state of the U.S.
