• Great Sand Dunes and Sangre de Cristo Mountains

    Great Sand Dunes

    National Park & Preserve Colorado

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  • Main Park Phone Numbers Not in Service

    The two main phone numbers to the park, 378-6399 and 378-6300, are not in service at this time. Voicemail is not functioning. Please call the Visitor Center at 719-378-6395 between 8:30-6:00 MST to reach a staff member.

Contact Us

Contacting the Park

Keep in mind that there is far more information on the park website than we can send you. Follow these links to find detailed answers to common questions on:

Camping and Lodging
Medano Creek Information, Forecast and Conditions
Outdoor Activities
Weather Info and Forecast
Webcam (live view of the park)
Nature and Science

For visitor inquiries,
E-mail a Ranger

or write to:

Visitor Center
11999 Highway 150
Mosca, CO 81146


Visitor Center (for general visitor inquiries)

Main Number (to access specific extensions, or listen to recorded park information)

For administrative and business correspondence, write to:

Administrative Office
Great Sand Dunes National Park
11500 Highway 150
Mosca, CO 81146-9798

Fax Numbers:

Administration and Fee Office: 719-378-6310
Visitor Center, Interpretation and Visitor Services: 719-378-6340

Did You Know?

Children rafting Medano Creek

In average to wet years, Medano Creek is a popular beach environment at Great Sand Dunes. When creek flow is high, some children even raft the shallow waters. More...