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Black Canyon of the Gunnison | by john weiss
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Black Canyon of the Gunnison

The Painted Wall is the tallest vertical wall in the state of Colorado with a height of 2,250 ft. The impressive wall consists of very old (1.7 billion years) Precambrian gneiss and schist rock that is cut by lighter colored pegmatite veins, which are also Precambrian in age.

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Taken on June 13, 2014