Mobile Device Connectivity

Mobile Phone User
Plan ahead for connectivity before visiting Great Sand Dunes National Park and Preserve.

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The Great Sand Dunes and Sangre de Cristo Mountains are relatively remote wilderness areas, with limited connectivity to mobile phone service, and no wi-fi in or near the park.

  • Verizon users generally find a signal in the main visitor area of the national park (Visitor Center, Campground, and Dunefield), as long as you have an open view of the valley floor and Alamosa.

  • For other carriers, you might need to be closer to or in Alamosa (40 miles southwest) to connect.

  • In the forested mountains of Great Sand Dunes National Preserve, even Verizon may not work unless you are located on a high point with a view of the valley.

  • Due to a limited-capacity phone line into the park, wi-fi is not available in or near Great Sand Dunes National Park and Preserve. Many businesses in Alamosa have public wi-fi available.

Last updated: November 19, 2018

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Contact Info

Mailing Address:

Visitor Center
11999 State Highway 150

Mosca, CO 81146


In the event of a medical emergency, missing person, or fire: Call 911. For non-emergencies (non-life-threatening situations): Call (719) 589-5807.

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