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john w gunnison

Black Canyon of the Gunnison

Added by yongli on 02/03/2017 - 13:31, last changed on 10/18/2019 - 11:07
Two thousand feet deep, forty-eight miles long, and two million years old, western Colorado’s Black Canyon of the Gunnison is one of the most stunning geologic features in the American West. The fourteen miles along the Gunnison River have been protected as a national park since 1999, drawing more...
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