Columbia Glacier, Valdez
Categories: Geologic Formations, Nature & Parks
The Columbia Glacier, a glacier in Prince William Sound on the south coast of the U.S. state of Alaska, is one of the fastest moving glaciers in the world, and has been retreating since the early 1980s. It was named after Columbia University, one of several glaciers in the area named for elite U.S. colleges by the Harriman Alaska Expedition in 1899.The Alaska Marine Highway vessel M/V Columbia is named after the Columbia Glacier.SizeThe glacier twists its way through western Alaska's Chugach Mountains. The bald streak at the bottom of the mountains, called the trimline, shows this glacier has lost 1,300ft of thickness. It has also retreated 10.5mi since that measurement was taken.RetreatThe glacier's speed of retreat at the terminus reached a maximum of nearly 30m per day in 2001, when it was discharging icebergs at approximately 7km3 per year; the glacier has subsequently slowed down, resulting in an increase in retreat rate. The terminus has retreated a total of 16km at an average rate of approximately 0.6km per year since 1982. The retreat has been accompanied by nearly 500m of thinning at the present position of the terminus. In the next few decades it is expected to retreat another 15km, to a point where the bed of the glacier rises above sea level. Columbia Glacier's retreat should be completed around 2020. Tidewater glacier advance and retreat is not directly forced by climate (adjacent tidewater glaciers may be simultaneously advancing and retreating), but rapid retreat appears to be triggered by climate-forced long-term thinning.To visit Columbia Glacier on your holiday in Valdez, and find out what else Valdez has to offer, use our Valdez itinerary maker.
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Left from Valdez through Prince William Sound to the Colombia Glacier. Good time to go, end of June with a lot of ice melting and able to get very close to the Glacier. Didn't realise how cold it was ... read more »
I visited this on a day trip out of the Valdez harbour and the Cpt got us so near you could hear the glacier creaking as it was melting,what an experience
You just be there at the dock office an hour before your sail time to receive your boarding pass, board, and receive their safety briefing. My review can be found for Stan Stephens.
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