Hike Coal Vein Trail

You've seen the beautiful red clinker capping the tops of buttes throughout the Little Missouri badlands. But where does it come from? Coal Vein Trail answers this and many more of your geology questions along its 0.8-mile length. Pick up one of the trail guides from the trailhead and go on a self-guided tour of the small loop, learning about clinker, bentonite, and the coal seam that burned here for more than 25 years! Hikers should wear proper footwear and keep away from steep cliff edges. It is illegal to remove any resource from a national park. Leave any flower, stone, or other object where you find it so that other visitors can enjoy it as well. It is illegal to carve, paint, or otherwise alter anything in a national park.