Great Sand Dunes National Park and Preserve
11500 Highway 150
Mosca, CO 81146-9798

Phone: 719-378-2312

The tallest in North America, these dunes were deposited over thousands of years by winds blowing through the passes of the Sangre de Cristo Mountains. Includes all significant portions of sand deposits associated with the Great Sand Dunes system, as well as important archeological and cultural sites and unusual hydrologic features. The preserve, containing the entire surface watershed and primary topographic features interacting with the Great Sand Dunes, ranges in elevation from 8,000 to more than 13,000 feet and includes life zones from desert to alpine tundra.