Great Sand Dunes National Park in Colorado, USA - map, photos and visitor information

Great Sand Dunes National Park and Preserve sits below the Sangre de Cristo Mountains in southern Colorado. Its main visitor area gives you access to open dunes, seasonal Medano Creek, and forest walks. You can explore a small part of the sand without committing to a summit. Longer dune hikes and trips into the mountain preserve need more preparation.

Highlights at Great Sand Dunes

• The first ridge of dunes: Walk onto the sand from the main parking area and choose a turnaround point that suits your group.
• Sand sledding and boarding: Bring equipment made for sand and use an appropriate slope in the main day-use area.
• Medano Creek: Seasonal water can create a shallow stream beside the dunes, but its flow varies sharply between years.
• Forest and night-sky outings: Add a woodland walk or return after dark to experience a different part of the park.

Know before visiting the dunes

Fees, hours, and seasonal access

Heat, altitude, and storms

Wear closed-toe shoes on the dunes. Summer sand can reach about 150°F (66°C), even when the air feels comfortable. Explore early or late in the day and carry water. The visitor area is about 8,200 feet above sea level, so begin slowly if you have come from a lower elevation.

Return to a building or vehicle when thunder threatens. The open dunes offer no safe lightning shelter. Keep children from digging deep holes beneath dune slopes, where sand can collapse. Treat natural water before drinking it.

Leave the dunes and wildlife undisturbed

Leave sand, rocks, antlers, plants, and cultural objects in place. Do not fly drones. Secure food and scented items in a closed vehicle or the provided bear locker. Keep music quiet enough for others to hear the natural surroundings.

Pets need a leash no longer than 6 feet, supervision, and protection from hot sand. They can visit the main dune day-use area and permitted trails, but cannot continue into the dune backcountry beyond the first high ridge. Pets are also excluded from national-park backpacking campsites and the visitor center. Check the permitted area before choosing a longer walk.

Entry and overnight reservations

You do not need a timed-entry reservation for a normal day visit. Piñon Flats campsites require reservations and can be booked up to three months ahead. A standard individual site costs USD 20 per night. Use the campground planning and reservation page to check the dimensions of your specific site.

Backpacking in the national park requires a permit reserved through Recreation.gov. Rules differ in the national preserve, where backpacking does not require that permit. Vehicle camping along Medano Pass is restricted to designated sites and requires suitable road conditions. Never assume that an empty pullout is a legal campsite.

Maps, location, and safe road access

Approach the main visitor area on paved CO 150 from the south or County Road 6 from the west. Use the visitor center at 11999 Highway 150, Mosca, as your destination. NPS warns that navigation apps can route drivers onto hiking trails or primitive mountain roads. Review the official approach directions before leaving the highway.

Medano Pass Primitive Road is a separate backcountry drive. Beyond Point of No Return, a high-clearance four-wheel-drive vehicle with low-range gearing is required. All-wheel-drive crossovers are not permitted on that section. The current road advisory warns of deep water at creek crossings 3–5 and advises avoiding the affected area. Read the Medano Pass road report before attempting the route. There is no cellular signal along it.

Nearby parks for the onward drive

These are regional stops reached by road, rather than parks beside the dunes.

• Lathrop State Park: Follow US 160 toward Walsenburg, then County Road 502. Its lakes and trails fit an eastbound journey.
• Trinidad Lake State Park: A farther option near the I-25 corridor, with access from Highway 12 near Trinidad. It offers lake recreation and camping.

Choose a dune walk, a board, or a forest trail

There are no marked trails in the dunefield. High Dune on the first ridge is a common destination, with an approximate 2.5-mile round trip. Soft sand, route choice, and altitude affect the effort; allow more time than you would for the same distance on a firm trail. High Dune is not the park's tallest dune.

For sandboarding or sledding, rent gear before entering. NPS does not rent it. Specialized boards and sleds work on dry sand; ordinary snow equipment generally does not. Avoid the steep eastern dune faces above firm, wet creek sand, where a fast descent can end abruptly.

Montville Nature Trail gives you a forested alternative to open sand. Mosca Pass Trail is a longer outing, about 3.5 miles each way. Neither should be treated as shelter from an approaching thunderstorm.

Medano Creek usually reaches its seasonal peak in late May or early June, but low snowpack can keep water from reaching the main parking area. Use the creek conditions page when planning a water-focused visit. An upstream gauge does not show the water depth beside the main dunes.

Visitor services and overnight options

The visitor center has exhibits, ranger assistance, flush toilets, and a water-fill station during opening hours. Bring your day's food and water supplies. The main Dunes Parking Area is about 1 mile north of the visitor center.

An accessible mat reaches the creek edge from the parking area. Ordinary wheelchairs are difficult to use beyond it. The park lends balloon-tire sand wheelchairs free of charge by advance telephone reservation. A strong helper must push the chair through soft sand.

Piñon Flats provides potable water, flush toilets, picnic tables, and food-storage lockers. It has no utility hookups or campground showers. There is no lodging inside the national park or preserve; arrange a room or cabin outside the boundary if you do not plan to camp.

About Great Sand Dunes

A landscape with living cultural connections

The dunes form part of the traditional homelands of Indigenous peoples. Affiliated tribes, including Ute, Jicarilla Apache, and Navajo communities, maintain connections with this landscape. Tribal consultation and cultural programs help the park share that history and continuing relationship. The visitor center introduces the region's diverse cultures alongside its natural systems.

Wildlife beyond the open sand

Deer, elk, and pronghorn use the park's habitats and can appear near roads. Black bears live in the foothills and mountains, while mountain lions are rarely seen. Observe animals from a distance. Drive carefully after dark and never feed wildlife.

Contact Great Sand Dunes

Visitor information: +1 719-378-6395. Visitor center address: 11999 Highway 150, Mosca, CO 81146. The official contact page provides an email route for planning questions. For an emergency, call 911.