The Roaring Fork Valley is a geographical region in western Colorado in the United States. The Roaring Fork Valley is one of the most affluent regions in Colorado as well as one of the most populous and economically vital areas of the Colorado Western Slope. The "Valley" is defined by the valley of the Roaring Fork River and its tributaries, including the Crystal and Fryingpan River. It includes the communities of Aspen, Snowmass Village, Basalt, Carbondale and Glenwood Springs. Mount Sopris and the Roaring Fork River serve as symbols of the Roaring Fork Valley.