From the Mile High City of Denver to 14,000-foot mountain peaks, the Rocky Mountains define this outdoorsy state. In southern Colorado, snowy peaks give way to enormous sand dunes near Alamosa and high desert canyons around Mesa Verde National Park. Near all Colorado campgrounds, options abound for family fun: Take to the trails on foot, horseback or ATV. Pan for gold. Hop aboard an excursion train. Steer along countless scenic drives. Camping is a way of life here, whether tenting near a mountain stream, renting a cabin alongside an alpine meadow or parking the RV under a grove of glowing aspens.