File:Hubbard Glacier (8).jpg

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Alaska, September 06.

Hubbard Glacier is the longest tidewater glacier on the North American Continent, at 76 miles from its source on Mount Logan in the Yukon Province of Canada to its face in Yakutat and Disenchantment bays in Alaska. The face of Hubbard is almost six miles in length, and has been advancing for about a century.

Every day massive blocks of ice 'calve' off the glacier and fall into the sea, forming icebergs that eventually flow out into Yakutat bay and thence to the open sea. This is an amazing sight to see, accompanied by a thunderous roar known locally as 'White Thunder'.

First, a sharp 'crack' is heard, followed by a low rumble as tons of ice and rock can be seen tumbling down the ice face into the sea, creating a small tidal wave and throwing up a cloud of debris and ice particles into the air, like a small explosion. The low rubble continues to echo around the bay, bouncing off the mountains.

Then total silence, until the procedure starts over again.
Date
Source Hubbard Glacier
Author Rich Engelbrecht

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This image, originally posted to Flickr, was reviewed on March 18, 2008 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date.

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current16:30, 18 March 2008Thumbnail for version as of 16:30, 18 March 20081,024 × 682 (602 KB)File Upload Bot (Magnus Manske) (talk | contribs) {{Information |Description= Alaska, September 06. Hubbard Glacier is the longest tidewater glacier on the North American Continent, at 76 miles from its source on Mount Logan in the Yukon Province of Canada to its face in Yakutat and Disenchantment bay

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