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15 U.S. cities for outdoor enthusiasts

By: Bryan Nelson on Oct. 18, 2010, 12:30 p.m.
Burlington, Vermont

Photo: DenisTangneyJr/iStockphoto

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Burlington, Vt.

According to the Centers for Disease Control and Prevention, Burlington is the nation's healthiest city. The reason? Lots of outdoor exercise options, which keeps obesity levels to among the lowest in America.

Only minutes from trailheads in the Adirondacks and Green Mountains, and with miles of biking trails, Burlington's population is among the most environmentally aware, and they understand the importance of keeping nature clean.