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FILE - In this Sept. 27, 2010 file photo, O'Neill Butte as seen from South Kaibab Trail, in Grand Canyon National Park, Ariz. Two mining industry groups have appealed a federal judge's ruling upholding an Obama administration ban on new hard-rock mining claims on more than one million acres near the Grand Canyon. (AP Photo/Carson Walker, File)

FILE - In this Sept. 27, 2010 file photo, O'Neill Butte as seen from South Kaibab Trail, in Grand Canyon National Park, Ariz. Two mining industry groups have appealed a federal judge's ruling upholding an Obama administration ban on new hard-rock mining claims on more than one million acres near the Grand Canyon. (AP Photo/Carson Walker, File)

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