This ten-year-old nonprofit helps preserve environmental giants by enlisting volunteer crews to rebuild trails, pick up garbage and generally buff up Colorado's biggest, and often most used, peaks. Last year, Mount Massive (14,421 feet), south of Leadville, and Wetterhorn Peak (a puny 14,015 feet), near Lake City, got makeovers. Volunteers don't get paid, but they do get equipment, food and a lofty sense of satisfaction.

Best Online Source for Mountaineering Activities

Colorado Mountain Club

The Colorado Mountain Club has plenty going on. Active since 1912 (though without a website back then), the group has helped foster a love of wilderness here and elsewhere. With activities ranging from hikes to investigations into science, art and literature, this is a portal that can open minds to the possibilities of getting outside. The CMC reminds us why we live here.

Best Online Source for Mountaineering Activities

Colorado Mountain Club

The Colorado Mountain Club has plenty going on. Active since 1912 (though without a website back then), the group has helped foster a love of wilderness here and elsewhere. With activities ranging from hikes to investigations into science, art and literature, this is a portal that can open minds to the possibilities of getting outside. The CMC reminds us why we live here.

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