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• 2010-06-20 13:52 NortyNort 500×396× (54898 bytes) {{Information |Description = High scalers drilling into canyon wall 500 feet above the Colorado River in Black Canyon, site of Hoover Dam, 1932. |Source = http://www.usbr.gov/lc/hooverdam/images/WashNo01333.jpg |Date = ~~~~~ |