Attracting more than 11 million visitors per year, Colorado's 41 State Parks are a vital cornerstone in Colorado's economy and quality of life, offering some of the best outdoor recreation destinations in the state. Colorado State Parks manages more than 4,000 campsites, 57 cabins and yurts, encompassing 246,000 land and water acres. For more information on Colorado State Parks or to purchase an annual pass online, visit www.parks.state.co.us.

Photo: Fall at Arkansas Headwaters Recreation Area.