Tuesday, June 21st, 2011
Scott Glacier Outwash Plain Near Cordova

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This aerial view shows the Eyak River near Cordova cutting through the extensive glacial outwash plain of Scott Glacier. Glaciers release a great deal of water as they melt, usually in streams that exit from the snout carrying large quantities of fresh-ground rock. Where the ground is relatively flat, the sediment builds up in an outwash plain and meltwater streams such as the Eyak River wander over it in a braided pattern. An interesting fact I learned recently is that glacial fed rivers in the Copper River Delta carry about 70 million tons of glacial sediments per year. The number of ATV tracks crisscrossing the sandbars are an indicator that this outwash plain is accessible from the Copper River Highway.

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