Current Conditions

Alerts

 
A white car is parked on a park road with arrows pointing to the white line. Text on Screen says park outside of white lines
Ranger Tips for busy weekend traffic: Ensure all 4 tires are outside of the white line when parking along park roadways.

NPS / Sierra Willoughby

Please Keep Roadways Clear

When parking in areas outsite of parking lots, please ensure all four tires are outside of the white line of the park road. This is to allow for safe passage of other vehicles and including timely emergency response to incidents for ranger staff.
 
decorative logo of park ranger flat wide brimmed hat
You can ask anyone who wears the park ranger flat hat if you need any other tips. You can usually find one of us at the visitor center or out on patrol in the park.

NPS

Ranger Tips

For a Safe & Fulfilling Memorial Day Visit

Here are a few tips and tricks for visiting the Great Sand Dunes during the busy season.

Expect Crowds - Memorial Day is our busiest weekend of the year. Expect wait times at the entrance booth and limited parking.

Drive Carefully - Expect rangers to be directing traffic and parking, and visitors to be walking along the roadways. Please drive slowly and listen to ranger instructions for everyone's safety.

Park Outside the White Lines - Full parking lots mean many people will be parking along park roadways. Make sure ALL FOUR TIRES are outside of the white line to ensure others can pass safely, especially emergency vehicles.

Website Updates & Alerts - Stay informed on conditions such as roads, trails, and building/facility status affecting your visit with the ALERTS section above.

Medano Creek Flow Conditions - Medano Creek is dry at the Dunes Parking. A small amount of water can be accessed by hiking up to Sand Pit or further (minimum 1.5 miles) or driving up the Primitive Road to Sand Pit or Castle Creek. These parking areas require high clearance 4WD to access and will fill up quickly.

Be sure to check the Current Medano Creek Conditions for the latest information.

Regional Road Conditions - . Check with the State of Colorado Road Conditions to be prepared for any road conditions or construction delays.

Wear Closed-Toed Shoes - On particularly warmer days, sand temperatures during the day can cause burns on bare feet. Be safe and wear shoes or boots during your adventures on the dunes. Check the Sand Temperature Forecast from the National Weather Service

Sun and Wind - Check the weather forecast and find out the expected temparatures, wind speeds. Goggles can be a handy item during higher wind days.

Sledding and Boarding? - Rent your sleds BEFORE coming to the park – there are NO rentals available inside the park – rental locations available at go.nps.gov/GRSA_Sandboarding Keep your close-toed shoes/boots with you while riding boards so that you can walk on hot sand before and after riding.

Elevation Matters - If you come from lower areas, take it easy and allow your body to adjust to the 8,200-foot elevation

Drink Water & Wear a Hat - Protect yourself from the cold and sun with sunscreen, sunglasses, and DRINK plenty of water. The air is usually very dry in this high elevation semi-desert environment.

Wear Layered Clothing - Be prepared for chilly nights and sunny cool to warm days, windy conditions, or even occassional spring snow showers.

Slow it Down – Speed limits are LOWER than highways outside the park. Adults, children, and wildlife frequest areas near park roads and parking lots. Keep people and wildlife safe and drive the posted speed limit, such as the 30 MPH limit at the park entrance sign or the 10 MPH at the Entrance Station (Fee Booth).

Pack a Picnic – while the visitor center bookstore sells some snacks, that is the only food available within the National Park. Plan ahead and bring everything you expect to need for the day

Leave it in the Park for Others to Enjoy - Collecting any materials in the park is prohibited, including antlers, rocks, flowers, arrowheads, sand, plants, and other natural and cultural resources. Please see the Laws and Polices for details.

Drones and RC Vehicles – leave drones and other remote-controlled cars or vehicles at home or locked in your vehicle. Drone use is not allowed inside the park.

Don't Feed the Bears! – proper food storage is required by law to keep your food and scented items away from bears and other wildlife. Keep food items inside a vehicle or place items inside the steel locker in your campsite.

Bluetooth Speakers and Sound Systems Disturbances - Leave your tunes in the vehicle or at home. Listen for the natural booming/singing sands of the dunes and allow other visitors that opportunity to experience natural sounds

Pets - Keep your pets on a leash, and they are allowed in most popular trails and dune areas. More specifics available at Go.nps.gov/GRSA_Pets

Enjoy this International Dark Sky Park - Great Sand Dunes is open in outdoor areas 24 hours a day. While camping or sleeping in vehicles requires a permit/reservation in a designated campsite, you may enter and visit the park at anytime to enjoy the night skies. Find out more on our Experience the Night Page.

 
Lightning bolts strike the dunes under a dark sky

NPS/Patrick Myers

Park and Preserve Weather and Sand Temperatures

Check here to see what weather conditions includind sand surface temperatores and lightning strike potential that you might need to be prepared for during your visit to Great Sand Dunes.
 
Blizzard on Highway

Colorado Department of Transportation

Regional Road Conditions

Check here with the State of Colorado for road conditions affecting your travels in the area.
 
 
A teen girl floats on an inflatable tube down a creek with a wave flowing across sand

NPS/Patrick Myers

Medano Creek Current Conditions and Forecast Flow

Medano Creek on average years only flows by the main dunes parking area a few weeks in late spring (mid May to early June). Check here for the latest forecast as information becomes available.
 
A jeep crosses Medano Creek along the Medano Pass Road with gold aspen trees around the road

NPS/Patrick Myers

Medano Pass Road Current Conditions

OPEN for 2026 Season
 

Park footer

Contact Info

Mailing Address:

Visitor Center
11999 State Highway 150

Mosca, CO 81146

Phone:

(719) 378-6395
General Park and Preserve information: (719) 378-6395 Emergencies (Police, Fire, Medical): Dial 911. Non-emergencies (Police, Fire, Medical): call (719) 589-5807

Contact Us