Coming from out of town? Why not extend your stay and visit more of Colorado. Boulder and Denver have lots to offer. Rocky Mountain National Park is only an hour from Boulder. The mountain towns of Breckenridge, Aspen, Vail, Telluride, Glenwood Springs, Estes Park, Buena Vista, and others offer a wonderful mountain experience. Colorado's Rocky Mountains offer endless options for hiking, mountain biking, camping, rafting, backpacking, fishing, exploring, visiting hot springs, or just relaxing. Colorado's other National Parks (Mesa Verde, Great Sand Dunes, Black Canyon of the Gunnison) and other Parks of the American West (Yellowstone, Grand Teton, Arches, Canyonlands, Grand Canyon, Bryce Canyon, Zion, and many others) are within a day's drive.