John Collinson, Kahiltna Glacier, Denali National Park, Alaska photo:Adam Clark/Sherpa's | John_Collinson_344.jpg
![John Collinson, Kahiltna Glacier, Denali National Park, Alaska
photo:Adam Clark/Sherpa's](http://fast.clickbooq.com/2dcc6b-275/John_Collinson_344-lg.jpg)
John Collinson, Kahiltna Glacier, Denali National Park, Alaska photo:Adam Clark/Sherpa's
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