Place

Lignite

Lignite Coal
Lignite Coal

Quick Facts
Location:
Caprock Coulee Trail
On the slope to your left is a thin black seam of lignite coal. Coal forms when vegetation is buried and subjected to great heat and pressure. Coal seams and other fossils tell us this region was once a lush, thickly vegetated swamp.

Theodore Roosevelt National Park

Last updated: September 5, 2025