Geology

Rainbow Basin Natural Area

San Bernardino County, CA

Coordinate verified

BLM Area of Critical Environmental Concern and National Natural Landmark north of Barstow showcasing multicolored Miocene badlands, fossil beds of the Barstow Formation, and a one-way scenic loop drive through folded, rainbow-hued sediments. Classic Mojave geology day trip with Owl Canyon campground nearby.

Field facts

RegionSan Bernardino County, CA
Coordinates35.0294, -117.0367
StatusACEC / National Natural Landmark
ManagerBLM Barstow Field Office
AccessFossil Bed Rd loop (dirt)
NearbyOwl Canyon Campground

Nearby locations

Nearby amenities

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

Map preview

Explore the area

The interactive map and its tiles load only when requested.

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