Geology

Ah-Shi-Sle-Pah Wilderness

San Juan County, NM

Coordinate verified

BLM wilderness (~7,200 acres) of bentonite badlands, hoodoos, petrified wood, and Late Cretaceous fossil-bearing strata in the San Juan Basin south of the better-known Bisti/De-Na-Zin Wilderness. Rolling clay hills and slot-like washes reward cross-country hikers who practice Leave No Trace; no developed trails or water.

Field facts

RegionSan Juan County, NM
Coordinates36.1397, -107.9207
ManagerBLM Farmington Field Office
DesignationWilderness (Dingell Act)
LandscapeBentonite hoodoos / petrified wood
NearbyNageezi / Chaco / Bisti

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Nearby amenities

Public recreation data — BLM & Recreation.gov (RIDB). Verify current access, fees, and seasonal closures before traveling.

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Plan ahead. Leave no trace. Verify current access before traveling.