4.5
(4006)
8,308
hikers
00:20
1.25km
10m
Hiking
The Coal Vein Nature Trail offers an easy 0.8-mile (1.3 km) hike, perfect for a quick outdoor experience. You will gain a gentle 28 feet (9 metres) of elevation, with the route typically taking around 19 minutes to complete. As you hike, you will traverse an unpaved path through juniper…
Last updated: April 23, 2026
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Parking
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48 m
Highlight (Segment) • Trail
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1.25 km
End point
Parking
Way Types & Surfaces
Way Types
1.21 km
Surfaces
1.21 km
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Friday 29 May
28°C
16°C
14 %
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Max wind speed: 38.0 km/h
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This route was planned by komoot.
This trail is renowned for its significant geological story. It gets its name from a coal vein that burned underground for 26 years, transforming surrounding rocks into the distinctive brick-red 'clinker' visible today. Interpretive signs along the route explain these fascinating geological processes, offering a concise lesson on the 60-million-year history of the badlands.
The trail features an unpaved path with uneven footing, traversing areas of gray bentonite clay that can become slippery or muddy after rain. You'll walk through juniper thickets and grasslands, experiencing alternating views of these distinct ecosystems and the striking badlands geology. Proper footwear is recommended due to the varied surfaces.
Yes, the Coal Vein Nature Trail is generally considered an 'easy' hike, suitable for most skill and fitness levels. It's a short loop, typically completed in 30-45 minutes. While mostly easy, it does include some minor stairs and steeper sections. There's a cutoff available to bypass the steepest parts if desired.
The trailhead for the Coal Vein Nature Trail is located in the South Unit of Theodore Roosevelt National Park. Parking is available at the trailhead.
Yes, as the trail is located within Theodore Roosevelt National Park, standard park entrance fees apply. These fees contribute to the maintenance and preservation of the park's facilities and natural resources.
You might spot wildlife such as coyotes, wild horses, bison, and various bird species. Seasonal ponds can host western chorus frogs. In warmer months, the trail can also be adorned with wildflowers, adding to the scenic beauty.
The trail can be enjoyed during most seasons. Spring and fall offer pleasant temperatures and potentially vibrant wildflowers or autumn colors. Summer can be hot, so an early morning or late afternoon hike is advisable. Be aware that bentonite clay sections can be slippery or muddy after rain, regardless of the season.
Dogs are permitted on the Coal Vein Nature Trail, but they must be kept on a leash at all times. Please remember to clean up after your pet to help preserve the natural environment.
Yes, the trail offers vast views of the lower canyon and the broader badlands landscape. A prominent landmark is the brick-red 'clinker' rock, formed by the underground coal fire, which is explained by interpretive signs along the way. You can also observe various colors of bentonite clay.
Due to the presence of minor stairs and uneven, unpaved surfaces, the Coal Vein Nature Trail is not considered handicapped-accessible or suitable for strollers.
Given the uneven terrain and potential for mud, proper footwear with good traction is highly recommended. Bringing water, especially during warmer months, is also advisable. Don't forget a camera to capture the unique badlands scenery and geological features.