High Dune
A trail-free climb to a great view.
Great Sand Dunes National Park
North America's tallest dunes, 750 feet high, against the snowy Sangre de Cristo Mountains, with a seasonal creek to splash in.
Rent a sandboard or sled in the town outside. In May and June, Medano Creek runs at the base of the dunes, a free beach in the mountains.
- Best Time
- May to September
- Time Needed
- 1 day
- Cost Level
- $$$$
- Open
- Year-round
- Getting There
- About 4 hours south of Denver.
What to See
1 of 3 are freeMedano Creek
A seasonal stream, best in late spring.
Night sky
A certified International Dark Sky Park.
Know Before You Go
- Sand can reach 150°F on summer afternoons.
- The creek dries up by July.
Where to Stay
Stay in Alamosa, or at the park's lodge.
Where to Eat
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Last checked 2026-11-01. Part of the Rocky Mountains list.