Alkali Flat Trail
White Sands' longest marked hike, crossing major dunes to the edge of ancient Lake Otero's dry basin.
Route overview
Alkali Flat Trail in New Mexico.
Red diamond posts lead through open, sparsely vegetated dunes toward the Alkali Flat. Despite its name, the five-mile route repeatedly climbs and descends some of the park's largest dunes and demands sustained effort in a visually repetitive landscape.
Trail facts
- Country
- United States
- Region
- New Mexico
- Distance
- 8.0 km
- Difficulty
- Hard
- Elevation gain
- Not published by official source
- Best season
- Check current official seasonal access and conditions
- Trail type
- Loop
Safety context
Foot travel only; bicycles, horses and motorized vehicles are prohibited. Do not begin at or above 85°F / 30°C. Carry at least 4 L of water, sun protection, salty food, light and emergency supplies. If a red diamond marker is missing or obscured, immediately reverse course. Check current official conditions, closures, weather and access rules before departure.
Foot travel only; bicycles, horses and motorized vehicles are prohibited. Do not begin at or above 85°F / 30°C. Carry at least 4 L of water, sun protection, salty food, light and emergency supplies. If a red diamond marker is missing or obscured, immediately reverse course.
Highlights
Alkali Flat Trail, White Sands National Park, strenuous hike, gypsum dunes, New Mexico hiking
Why find a buddy
Designed for fit, self-reliant partners with compatible heat tolerance and conservative navigation habits. Agree on turnaround triggers, water reserves, marker spacing and a no-separation rule before starting.
Primary source
Explore and prepare
Discover hikes by intent, read the hiking guides, review hiking safety, prepare a BuddyPack, or browse hiking plans.
Route conditions, access, services and transport can change. Verify time-sensitive information before departure.