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Muon Mountain and the Subatomic Glacier # 18777

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Date: 2019.08.07
Vantage Point: From the summit of Microscope SE1, looking SW

Caption: Muon Mountain is the humped peak at top-center. The peaks in the far left background are in the Manatee Group, while those in the right background are various nunataks in the Lillooet Icefield. The slopes in the right foreground belongs to Meson Peak.

PhotoDescr: Taken on the fourth day of a 6 day trip to the Slim Creek Headwaters area. From the summit of Microscope SE1 we had a great view straight up the large glacier draining into Griswold Pass (unnamed on maps) that we referred to as the Subatomic Glacier both due to its location amongst that group and ironically due to its size. Muon Mountain sits at the head of the glacier, and the head of another glacier draining into Duane Creek SW of Meson Peak. We contemplated doing a loop of Lepton Mountain, Muon Mountain, and Griswold Pass but were not certain of the feasibility of the route.

Like a lot of the glaciers in the area, this one is quite flat and bare for midsummer. No doubt it will continue to retreat rapidly. It's worth comparing the extent in this photo with that in Klaus Haring's photo in 2001--the glacier has both retreated and thinned considerably, as is evident by the emergence of rock below Muon.

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