Left, the top of the Russell glacier, and the glory of Mt Bona, middle of the film, in the Wrangell-St Elias National Park, Alaska. Shot taken at 7000 feet on the north side Russell glacier, not the normal climbing route! Mt Bona is 16421 feet; it is the highest volcano in the US, last eruption 847 AD. Right, Mt Bona, north side. Climbable? The guides didn't think so when we first saw this!