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These small survey stakes mark the entrance to an extension of the Fox Permafrost Tunnel before drilling began in spring 2011. The original tunnel entrance is located to the left. This extension is being drilled by scientists from CRREL to expose new regions of sub-surface permafrost and will connect with the original tunnel, where bones of mammoths and vegetation from the last ice age have been found.
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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.Source: http://en.wikipedia.org/wiki/Alaska
