Snowmaking machines assist ski resorts to open earlier

Mother Nature delivered an unusual amount of sunshine and warm weather to Colorado mountain resorts this season, but ski resorts are opening up with artificial snow.
Mother Nature hasn't helped Colorado's ski resorts much so far this season. They're able to open mostly because of snowmaking.

Snow-making machines keep the terrain park open at the Whitetail Ski resort near Mercersburg, Pennsylvania on January 7, 2012. With the high temperature at 59 degrees Fahrenheit (15C) Whitetail had about half

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Snow-making machines keep some of the slopes open with a small crowd at the Whitetail Ski resort near Mercersburg, Pennsylvania on January 7, 2012. With the high temperature at 59 degrees Fahrenheit (

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Snow-making machines keep the terrain park open at the Whitetail Ski resort near Mercersburg, Pennsylvania on January 7, 2012. With the high temperature at 59 degrees Fahrenheit (15C) Whitetail had about half

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