A group of runners in Team Prep USA's distance running camp do short warm up sprints, stretch and do strides as part of the day's training disipline before a trail run in Crested Butte, Colorado. Now in its 15th year Team Prep is considered to be one of the premier running camps for high school athletes in the world. (Dean Krakel, Special to The Colorado Sun)

The fastest kids in America are running hills and chilling in creeks around Crested Butte

At 8,900 feet sits Team Prep USA’s renowned summer running camp. "If they can tolerate things other people are unwilling to tolerate, they’re going to live a beautiful life," one coach says.

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