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The Cresta Run at St Moritz, Switzerland, circa 1904. (Photo by Popperfoto via Getty Images/Getty Images)

The Cresta Run at St Moritz, Switzerland, circa 1904.  (Photo by Popperfoto via Getty Images/Getty Images)

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ST MORITZ, SWITZERLAND - APRIL 13: The famous traditional St Moritz Tobogganing Club & The Cresta Run on December 14, 2013 in St Moritz, Engadin, Graubunden, Switzerland. The exclusive Club was founded in 1887. (Photo by EyesWideOpen/Getty Images)

ST MORITZ, SWITZERLAND - APRIL 13: The famous traditional St Moritz Tobogganing Club & The Cresta Run on December 14, 2013 in  St Moritz, Engadin, Graubunden, Switzerland. The exclusive Club was founded in 1887. (Photo by EyesWideOpen/Getty Images)

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ST MORITZ, SWITZERLAND - APRIL 13: The famous traditional St Moritz Tobogganing Club & The Cresta Run on December 14, 2013 in St Moritz, Engadin, Graubunden, Switzerland. The exclusive Club was founded in 1887. (Photo by EyesWideOpen/Getty Images)

ST MORITZ, SWITZERLAND - APRIL 13: The famous traditional St Moritz Tobogganing Club & The Cresta Run on December 14, 2013 in  St Moritz, Engadin, Graubunden, Switzerland. The exclusive Club was founded in 1887. (Photo by EyesWideOpen/Getty Images)

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January 1908: A skeleton competitor taking off in his toboggan at the Cresta Run, Saint Moritz, Switzerland. (Photo by Topical Press Agency/Getty Images)

January 1908:  A skeleton competitor taking off in his toboggan at the Cresta Run, Saint Moritz, Switzerland.  (Photo by Topical Press Agency/Getty Images)

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Mounted on their motorized toboggans, mountain troops of the U.S. Army pop out of their caves in the snowbank they have made their home while on field training on Mount Rainier. These toboggans are capable of amazing speed over the snow. Their riders are trained in skiing, snowshoe travel, mountain climbing, and the kind of fighting best suited to this type of terrain.

Mounted on their motorized toboggans, mountain troops of the U.S. Army pop out of their caves in the snowbank they have made their home while on field training on Mount Rainier.  These toboggans are capable of amazing speed over the snow.  Their riders are trained in skiing, snowshoe travel, mountain climbing, and the kind of fighting best suited to this type of terrain.