This undated image provided by the City of Rocks National Reserve ...
This undated image provided by the City of Rocks National Reserve shows climbers on Elephant Rock inside the reserve in southeastern Idaho. The towering spikes, monoliths and pillars of granite that jut out of the high desert floor along the old wagon trail to California's gold fields were marveled at by thousands of transcontinental travelers more than a century ago.
(AP Photo/City of Rocks National Reserve )
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