The best traffic-free bike rides in Pennington County
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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 for rides.
Best no traffic gravel bike trails in Pennington County
- The most popular no traffic gravel bike trail is George S. Mickelson Trail – Hill City loop from Castleton, a 24.0 miles (38.6 km) trail that takes 2 hours 15 minutes to complete. This route utilizes a section of the George S. Mickelson Trail, known for its gentle grades and scenic passage through forests.
- Another top favourite among local gravel bikers is Custer – George S. Mickelson Trail loop from Medicine Mountain, a difficult 78.8 miles (126.8 km) path. This extensive loop offers challenging terrain and significant elevation gain through the Black Hills landscape.
- Local gravel bikers also love the George S. Mickelson Trail – Hill City loop from Hill City, a 28.9 miles (46.4 km) trail leading through varied forest terrain, often completed in about 2 hours 49 minutes.
- Gravel biking in Pennington County is defined by rail-trails, extensive gravel roads, and granite formations, offering a mix of well-maintained paths and more rugged forest service routes. The network provides options for different ability levels, from moderate to difficult.
- The routes in Pennington County are highly rated by the komoot community with an average score of 4.0 stars from a few reviews. More than 80 gravel bikers have used komoot to explore Pennington County's varied terrain.
Last updated: July 7, 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
The George S. Mickelson Trail – Hill City loop offers a distinctive gravel biking experience through the Black Hills, immersing you in dense ponderosa pine forests and open prairie vistas. You'll ride on packed crushed limestone and gravel, navigating gentle grades that occasionally give way to more strenuous uphill sections, especially near Mystic. Keep an eye out for the impressive granite walls, historic rock tunnels, and the numerous converted railroad bridges that are a hallmark of this route.
To plan your visit, remember that a trail pass is required for all users aged 12 and older, which can be purchased daily at the Hill City trailhead. While amenities like parking, restrooms, and water are available, be prepared for limited cell phone coverage in some areas. A gravel bike or mountain bike is highly recommended for the varied terrain, and allow around 2 hours and 49 minutes to complete this 28.9-mile (46.4 km) loop with its 2062 feet (628 metres) of elevation gain.
This difficult gravel biking route is a significant rail-to-trail project, following an abandoned Burlington Northern railroad line, which explains its gentle slopes and unique historical features. It's a great way to experience the tranquility of the Black Hills, with opportunities to spot wildlife and enjoy views of the Crazy Horse Memorial, making it one of the more popular routes for those seeking a challenging ride.
5
riders
41.1km
02:19
360m
360m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
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89.4km
05:06
870m
870m
The George S. Mickelson Trail – Custer loop from Hill City offers a demanding gravel biking adventure through the heart of the Black Hills. You'll pedal along a consistently well-maintained crushed limestone and gravel path, winding through shaded ponderosa pine forests, crossing historic railroad bridges, and emerging into open meadows. The route provides a fantastic opportunity for wildlife spotting and offers scenic viewpoints, including a distant view of the Crazy Horse Sculpture.
Planning your ride requires a daily or annual trail pass, which is essential for the trail's upkeep. You'll find convenient trailheads with parking, self-sale pass stations, and basic amenities like vault toilets along the 109-mile Mickelson Trail system. Starting early is advisable for this 55.6-mile (89.4 km) loop, especially given its 5 hours and 5 minutes estimated duration and 2863 feet (873 metres) of elevation gain.
This difficult loop is part of South Dakota's first rails-to-trails project, transforming a historic Burlington Northern rail line into a multi-use pathway. Its car-free nature provides a peaceful experience, connecting you to various Black Hills attractions beyond just the trail itself. The route's unique infrastructure, including four rock tunnels, adds to its distinctive character, making it a notable challenge for advanced gravel bikers.
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Tips from the Community
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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Along this section of the George S. Mickelson Trail, you'll cross several wooden bridges over Rapid Creek, offering incredible views as you're elevated above the water, surrounded by lush forest.
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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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You’ll come across several wooden bridges along the Mickelson Trail. These old railroad crossings give the route a strong sense of place and a real Wild West feel. They’re often surrounded by forest and open views, with creeks or canyons running below.
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Frequently Asked Questions
How many no-traffic gravel bike trails are available in Pennington County?
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.
What makes Pennington County ideal for no-traffic gravel biking?
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.
Are there any truly car-free gravel trails in Pennington County?
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.
What kind of terrain can I expect on no-traffic gravel bike trails in Pennington County?
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.
Are there challenging no-traffic gravel routes for experienced riders?
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.
Are there family-friendly no-traffic gravel bike trails in Pennington County?
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.
What natural attractions or landmarks can I see along these no-traffic gravel bike trails?
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.
Which routes offer the most scenic views?
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.
Where can I find parking for no-traffic gravel bike trails in Pennington County?
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.
What is the best time of year to gravel bike in Pennington County?
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.
Are there any loop options for no-traffic gravel bike rides?
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.
What do other gravel bikers enjoy most about the no-traffic trails in Pennington County?
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.
Most popular routes in Pennington County
Most popular attractions in Pennington County
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