Great Sand Dunes National Park & Preserve #grsa #nationalpark
⛔ Park Closure ⛔
Issued: 12/4/2025 12:00 AM EST

Visitor Center Delayed Opening at 10 am Thur. Dec. 4th due to Snow.

The Great Sand Dunes Visitor Center hours today will be 10 am to 4:30 pm to allow park staff time to clear snow from parking lots and sidewalks. Area roads and park roads are plowed but icy. Please drive slowly and with caution if you are visiting the park today.

Great Sand Dunes National Park & Preserve #grsa #nationalpark
⚠️ Caution ⚠️
Issued: 11/13/2025 12:00 AM EST

Medano Pass Primitive Road Impassible to Most Vehicles at Crossing Two

Driving the Medano Primitive Road is NOT ADVISED at this time. Erosion and deep mud near the second creek crossing are making the road impassible to most vehicles. There have been many instances the area is blocked by a stuck vehicle. All vehicle operators will be responsible for their own vehicle (1/2)

Great Sand Dunes National Park & Preserve #grsa #nationalpark
ℹ️ Information ℹ️
Issued: 10/12/2025 12:00 AM EDT

What to Expect During Government Funding Lapse

In general, other areas within this park remain as accessible as possible. Visitors should be aware that while some services are unavailable visitors are expected to protect park resources by following all regulations and “Leave No Trace” practices. As of Sunday 10-12-2025, the Visitor Center and WNP Park Store are open (1/2)

Great Sand Dunes National Park & Preserve #grsa #nationalpark
ℹ️ Information ℹ️
Issued: 8/11/2025 6:10 PM EDT

Trail CLOSED Between Visitor Center and Montville Trailhead

The access train that leads from the visitor center to the Montville and Mosca Pass Trails is CLOSED due to construction. Hikers may start at the Montville Trail parking lot. Visitor Center access remains open.

Great Sand Dunes National Park & Preserve #grsa #nationalpark
ℹ️ Information ℹ️
Issued: 8/11/2025 5:48 PM EDT

Trail CLOSED Between Visitor Center and Montville Trailhead

The access train that leads from the visitor center to the Montville and Mosca Pass Trails is CLOSED due to construction. Hikers may start at the Montville Trail parking lot.

Great Sand Dunes National Park & Preserve #grsa #nationalpark
⚠️ Caution ⚠️
Issued: 8/4/2025 6:54 PM EDT

Air Quality at MODERATE Due to Smoky Conditions

For Unusually Unusually sensitive people: Consider making outdoor activities shorter and less intense. Watch for symptoms such as coughing or shortness of breath. These are signs to take it easier.

https://www.airnow.gov/?city=Mosca&state=CO&country=USA

AirNow.gov

AirNow is your one-stop source for air quality data. Our recently redesigned site highlights air quality in your local area first, while still providing air quality information at state, national, and world views.

Great Sand Dunes National Park & Preserve #grsa #nationalpark
ℹ️ Information ℹ️
Issued: 7/30/2025 3:51 PM EDT

Junior Ranger Day Event CHANGED to Saturday August 16th 9 am to 1 pm

The park changed the original date of Aug. 2 and has moved the event to Aug. 16th due to staffing availability. We apologize for any inconvenience this may have caused.

https://www.nps.gov/grsa/planyourvisit/calendar.htm

Calendar - Great Sand Dunes National Park & Preserve (U.S. National Park Service)

Great Sand Dunes National Park & Preserve #grsa #nationalpark
⛔ Park Closure ⛔
Issued: 7/23/2025 8:44 PM EDT

Medano Primitive Road CLOSED Due to Flood Damage Between Castle Creek & Medano Pass

Flooding on July 22nd covered many sections of the Medano Primitive Rd. with debris, and some sections are washed out. Park crews are currently repairing damaged sections. Crews will reassess conditions on Friday 7/25 for possible (1/2)

Great Sand Dunes National Park & Preserve #grsa #nationalpark
⛔ Park Closure ⛔
Issued: 7/23/2025 4:28 PM EDT

Medano Primitive Road CLOSED Due to Flood Damage Between Castle Creek & Medano Pass

Flooding on July 22nd covered many sections of the Medano Primitive Rd. with debris, and some sections are washed out. Park crews are currently repairing damaged sections. Earlies possible reopening is Fri. July 25, depending on weather (1/2)

Great Sand Dunes National Park & Preserve #grsa #nationalpark
⛔ Park Closure ⛔
Issued: 7/23/2025 10:41 AM EDT

Medano Primitive Road CLOSED due to Flood Damage Between Castle Creek & Medano Pass

Heavy rain during a severe thunderstorm over the mountainous regions of the park on the afternoon of July 22nd has created impassable conditions on the Medano Primitive Rd. which is CLOSED between Castle Creek and Medano Pass. Paved roads are (1/2)