Smoky Hills Fossil Ridge Trail

The Smoky Hills Fossil Ridge Trail climbs through 90-million-year-old chalk formations west of Oakley, following ranch roads and cattle paths across badlands that once lay beneath the Western Interior Seaway. The technical sections require careful line choice through loose chalk and gypsum, especially the notorious Devil’s Backbone ridge where the trail drops 300 feet in half a mile. Fossil hunters regularly find shark teeth, ammonites, and pieces of ancient marine reptiles weathering from the Niobrara Chalk formation.

This difficult route demands experienced drivers and modified 4WDs with good ground clearance and aggressive tires. The chalk becomes slick as grease when wet, making spring and fall the prime seasons. Bring fossil collection permits from private landowners, plenty of water, and a shovel for self-recovery. The reward is driving through one of the world’s richest fossil deposits while experiencing the raw beauty of western Kansas badlands. Camping requires landowner permission.