4.0
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84
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7
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Gravel biking in Pennington County, located within South Dakota's Black Hills, offers diverse landscapes for cyclists seeking no traffic gravel bike trails. The region features extensive networks of gravel roads and rail-trails, including the George S. Mickelson Trail, which winds through ponderosa pine forests and over historic bridges. Terrain ranges from well-maintained crushed limestone paths to more rugged forest service routes, providing varied experiences for gravel bikers. Granite formations and pine-covered mountains characterize much of the area, offering scenic backdrops…
Last updated: April 25, 2026
11
riders
38.6km
02:15
410m
410m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
127km
07:51
1,640m
1,640m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4
riders
46.4km
02:49
630m
630m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
89.4km
05:06
870m
870m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
90.8km
06:02
1,170m
1,170m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Pennington County
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A nice centre with all kinds of beautiful painted buffalos.
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Major Lake Park is a quiet lakeside spot in Hill City, perfect for a picnic, a wildlife break, or a quick detour off the Mickelson Trail. Look out for geese, deer, and the local osprey.
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On this stretch of the George S. Mickelson Trail, you’ll get clear views of Harney Peak, the highest point in South Dakota, surrounded by the rugged beauty of the Black Hills.
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Custer is in the heart of the Black Hills. On this commune, you will find a few kilometers to the north - by taking the Crazy Horse Memorial Highway - "The Thunderhead Mountain" where the monument to the memory of Crazy Horse is located. In response to the gigantic statues of the 4 faces of the American presidents: George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln on Mount Rushmore, an Austrian-born sculptor wanted to pay tribute to the famous Lakota warrior Tashunka Witko - Crazy Horse. 985077174705 He sculpts an entire mountain trying to represent the historical figure riding his horse. It has been more than 30 years that only the head has been carved. Suffice to say that this work will certainly never be finished. The site, by its gigantism is impressive. It is an incongruous visit to make.
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Hill City, South Dakota, has a rich history and plenty of outdoor activities. Founded during the Black Hills gold rush, the town is known as "The Heart of the Hills." You can take a ride on the 1880s-era train for a scenic trip through the area. Hill City is also close to Custer State Park and the George S. Mickelson Trail for hiking, biking, and wildlife watching. The Black Hills Institute of Geological Research has fossil exhibits, including the famous T. rex, Sue. With local wineries and easy access to Mount Rushmore and Crazy Horse Memorial, Hill City offers an exciting mix of history, nature, and culture.
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Redfern was once a booming railroad town in the late 1800s. Named after the Redfern family, who settled here during the construction of the Black Hills and Fort Pierre Railroad, the town played a crucial role in transporting goods and people across this rugged region. Today, remnants of Redfern’s railroad past can still be seen, including the old train depot and nearby railbeds.
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Beautiful, small waterfall alongside the George S. Mickelson Trail. This is a great spot to take a break and enjoy the quiet, peaceful surroundings.
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There are a good number of tunnels along the George S. Mickelson Trail, and this one’s a standout. Carved right into the rock and surrounded by forest, it’s a cool little detour from the open trail. It gets pretty dark inside, so having a flashlight or headlamp on hand isn’t a bad idea.
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Pennington County offers a good selection of no-traffic gravel bike trails, with 7 routes detailed in this guide. These range from moderate to difficult, providing options for various skill levels.
Pennington County, nestled within the Black Hills, is exceptional for no-traffic gravel biking due to its diverse landscapes and extensive trail networks. The region features the 109-mile George S. Mickelson Trail, a crushed limestone rail-to-trail path, and numerous gravel roads within the Black Hills National Forest that offer quiet, scenic rides away from vehicle traffic.
Yes, the George S. Mickelson Trail is a prime example of a car-free gravel path in Pennington County. It's a rail-to-trail conversion, providing a safe and serene riding experience through the Black Hills, connecting towns and passing through tunnels and over bridges.
The terrain varies significantly. The George S. Mickelson Trail offers a relatively smooth, crushed limestone surface with a gentle grade. In contrast, routes within the Black Hills National Forest can feature more rugged two-track paths, well-kept gravel roads, and some sections with potholes or ruts, providing a more adventurous experience.
Absolutely. While the Mickelson Trail offers accessible sections, many routes in the Black Hills National Forest and areas like Spearfish Canyon provide significant elevation gain and more technical terrain. For example, the Custer – George S. Mickelson Trail loop from Medicine Mountain is rated difficult, covering over 126 km with substantial climbing.
Yes, sections of the George S. Mickelson Trail are particularly well-suited for families due to their gentle grades and car-free environment. Its smooth crushed limestone surface makes it accessible for riders of various ages and abilities.
Many trails offer access to stunning natural features. You can ride near iconic landmarks like Mount Rushmore, explore the vast Black Hills National Forest, or pass by scenic viewpoints like View of Mount Rushmore National Memorial. The region is also home to Black Elk Peak and unique geological formations.
For breathtaking vistas, consider routes that traverse the Black Hills National Forest. Roads like Antelope Ridge Road (USFS 283) offer expansive views stretching into Wyoming. Spearfish Canyon also provides incredibly scenic descents and views of impressive rock formations and waterfalls.
Designated trailheads for the George S. Mickelson Trail are available in towns like Hill City and Custer, offering convenient parking. For routes within the Black Hills National Forest, parking is often available at forest service road access points or designated recreation areas.
The best time for gravel biking in Pennington County is typically from late spring through early fall (May to October). During these months, the weather is generally mild, and the trails are free of snow, offering ideal conditions for riding and enjoying the scenic beauty of the Black Hills.
Yes, several loop options are available. For instance, the George S. Mickelson Trail – Hill City loop from Castleton and the George S. Mickelson Trail – Custer loop from Hill City provide excellent circular routes, allowing you to experience different sections of the trail without retracing your path.
The area is highly rated by the komoot community, with an average score of 4.0 stars. Reviewers often praise the tranquility and natural beauty of the car-free sections, the well-maintained surfaces of the Mickelson Trail, and the adventurous spirit of the Black Hills National Forest gravel roads.


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