International Dark Sky Park
11999 State Highway 150
Mosca, CO 81146
The 603.1 sq. km. (232.9 sq. mile) Great Sand Dunes National Park and Preserve contains the tallest sand dunes in North America and is located in south-central Colorado. According to NPS monitoring data, Great Sand Dunes is one of the quietest NPS sites and enjoys extremely pristine night skies owing to its remote location. Furthermore, the Park is also well-known for the seasonal Medano Creek and beach created at the base of the dunes. Additional attractions at the Park include: the backcountry Medano Pass Primitive Road winds through a canyon toward the Sangre de Cristo mountains and ample trails which lead to forests, wetlands, and alpine lakes.
Click here to find ideal environmental conditions for viewing the night sky at Great Sand Dunes National Park (37.7925, -105.61917). Don’t forget to plan your trip during the new moon and astronomical twilight to enhance the viewing experience!