4.5
(2)
117
riders
18
rides
Gravel biking in Black Hills National Forest offers a diverse landscape characterized by pine-covered mountains, rugged granite formations, and a vast network of gravel and dirt roads. This 1.2-million-acre forest provides a striking contrast to the surrounding plains, featuring numerous lakes and varied terrain. The region's extensive road network includes thousands of miles of gravel routes, connecting small towns and offering scenic paths through the forest.
Last updated: July 11, 2026
13
riders
38.6km
02:15
410m
410m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
18
riders
53.9km
03:12
690m
680m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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7
riders
127km
07:51
1,640m
1,640m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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.
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Popular around Black Hills National Forest
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A truly beautiful lake to walk around. The trail is easy, though there's a bit of a climb and a narrow cliff.
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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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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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The Crazy Horse Memorial is one of the most iconic landmarks in the Black Hills. Still under construction, it’s set to be the world’s largest mountain carving and honors the Lakota leader Crazy Horse. Even in its unfinished state, it’s an impressive sight and carries a powerful story about Native history and resistance. You can see the sculpture from the road, but the visitor center offers a closer view, along with exhibits on Native American culture and the carving process.
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As you head further south towards Custer, it feels like you're far from civilization. Buckthorn Mountain comes into view, surrounded by wide stretches of open greenery.
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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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Black Hills National Forest offers a diverse network of over 15 gravel bike trails, ranging from easy to difficult. This includes routes that utilize the extensive 6,000 miles of gravel and dirt roads throughout the forest, providing a wide variety of scenic experiences.
You can expect a varied terrain in Black Hills National Forest. The region is characterized by pine-covered mountains, rugged granite formations, and extensive gravel and dirt roads. Some routes, like sections of the George S. Mickelson Trail, feature a crushed limestone and gravel surface, while others on Forest Service Roads offer challenging climbs, rolling hills, and spectacular vistas.
While specific family-friendly routes are not detailed in the guide, the George S. Mickelson Trail is a 109-mile rail-to-trail path with a crushed limestone and gravel surface, generally suitable for various skill levels and often enjoyed by families. It passes through 14 communities and features over 100 converted railroad bridges.
Many gravel routes offer access to or views of iconic landmarks. You might pass by the Mount Rushmore National Memorial, or enjoy views of Black Elk Peak, the highest point in South Dakota. The Hill City – Crazy Horse Memorial loop from Sylvan Lake, for instance, takes you past the Crazy Horse Memorial and the beautiful Sylvan Lake.
Yes, the Black Hills National Forest is home to several beautiful waterfalls, particularly within Spearfish Canyon. While not directly on a gravel biking route listed, you can find highlights like Waterfall by Rochford Road, Bridal Veil Falls, and Spearfish Falls nearby, which are worth exploring after your ride.
The Black Hills National Forest is highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the diverse landscapes, the sense of being far from civilization on quiet gravel roads, and the opportunities to experience abundant wildlife and wildflowers.
Yes, there are several excellent loop routes. For example, the Hill City loop from Hill City is a popular moderate option, and the more challenging Hill City – George S. Mickelson Trail loop from Hill City offers a longer ride incorporating the famous rail-to-trail path.
Absolutely. The diverse habitats of the Black Hills National Forest support a variety of wildlife. You may spot bison, deer, elk, bighorn sheep, golden eagles, and red-tailed hawks, especially on the quieter Forest Service Roads that weave through wide stretches of open greenery.
The trails in Black Hills National Forest cater to various skill levels. Out of the 15 available routes, there is 1 easy trail, 6 moderate trails, and 8 difficult trails. This means you can find everything from gentle rides to challenging paths with significant elevation gain, such as the Hill City – Crazy Horse Memorial loop from Sylvan Lake.
Yes, you can find gravel routes that explore the areas around Custer State Park. The Custer State Park – Pringle loop from Custer is a moderate route that offers a great way to experience the park's surroundings on your gravel bike.
The George S. Mickelson Trail is a renowned 109-mile rail-to-trail path, perfect for gravel biking with its crushed limestone and gravel surface. It follows an old railroad grade through the heart of the Black Hills. You can access sections of it through various routes, such as the George S. Mickelson Trail – Hill City loop from Castleton.


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