Current Conditions


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Great Sand Dunes Visitor Center

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Current Covid-19 Guidance

Updated March 29, 2023

  • There are no area or building closures at Great Sand Dunes. Check the latest visitor center hours and status.
  • Great Sand Dunes is located in Saguache and Alamosa counties, and the park is required to monitor transmission rates in both counties. Masks are currently OPTIONAL in buildings at Great Sand Dunes. This may change on a weekly basis, please call the visitor center or check this webpage for updates that will be posted to help you plan your visit. 
  • The NPS has updated its masking guidance based on the CDC’s COVID-19 Community Levels tool, which helps communities decide what prevention steps to take. Masking requirements will vary by park based on local conditions, however masks are still required on all forms of enclosed public transportation. In areas CDC identifies as high COVID-19 community level, masks are required for everyone in all NPS buildings, regardless of vaccination status. In most low and medium COVID-19 community level areas, masks are optional, and you are welcome to wear a mask if it makes you more comfortable. Additional details are available at the National Park Service Public Health Update Page .

Last updated: April 17, 2023

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Contact Info

Mailing Address:

Visitor Center
11999 State Highway 150

Mosca, CO 81146


719 378-6395
Great Sand Dunes Visitor Center main number

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