4.0
(2)
76
riders
7
rides
If you've ever tried to plan gravel biking in Custer County, you know how quickly the options can feel overwhelming. With so many roads and trails, it's tough to figure out which routes are genuinely worth your time and effort, and which are just filler. We get it – you want the good stuff, not endless scrolling.
That's where komoot comes in. Our community has ridden, mapped, and reviewed these routes, giving us the inside scoop on what truly stands…
Last updated: May 31, 2026
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.
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.…
4
riders
67.8km
04:48
630m
630m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
13.5km
00:44
120m
120m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
6
riders
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…
2
riders
58.7km
04:28
490m
490m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
50.0km
03:29
450m
450m
Embark on the Custer – Pringle loop, a gravel biking adventure that immerses you in the heart of the Black Hills. You'll glide along the George S. Mickelson Trail's smooth…
5
riders
75.9km
05:34
1,040m
1,040m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
22.4km
01:28
270m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Custer County
Gravel biking in Custer State Park

Gravel biking around Custer
George S. Mickelson Trail — rail to trail through Black Hills gold country
In the heart of the Black Hills in South Dakota – Centennial Trail
From the mountain peaks to the prairie – Rocky Mountains and Great Plains
Paha Sapa in South Dakota and Wyoming — the Black Hills loop
Hiking in Custer County
Cycling in Custer County
Running Trails in Custer County
Road Cycling Routes in Custer County
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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Pringle is a small town in the southern Black Hills, surrounded by rolling hills and dense forests. It’s a great spot for outdoor activities, with wildlife like deer, elk, and wild turkeys in the area. After hiking, you can grab a meal or a drink at Hitchrail Bar & Restaurant, a local spot for food and drinks. It’s a quiet, no-frills place to relax and enjoy the serene surroundings.
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Custer State Park, located in the Black Hills, offers diverse landscapes, from dense forests to open prairies and towering granite peaks. During a visit, you can expect breathtaking views, including sweeping views of the Black Hills and jagged rock formations. The park is teeming with wildlife, including bison, deer, elk, and bighorn sheep, which roam freely across the park. You can spot golden eagles and red-tailed hawks. In the spring and summer, wildflowers bloom in the meadows, adding color to the already stunning surroundings.
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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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On komoot, you can find 7 gravel bike routes in Custer County. These routes offer a variety of experiences, from moderate to difficult, traversing the diverse landscapes of the Black Hills.
The prime season for gravel biking in Custer County typically runs from spring through fall. During these months, the weather is generally favorable, and trails like the George S. Mickelson Trail are fully accessible. While some roads, such as the Needles Highway, close to motor vehicles in winter, they can offer unique opportunities for biking when conditions allow.
Yes, Custer County offers several moderate gravel bike trails. For example, the Hill City loop from Hill City is a 25.7-mile route with a moderate difficulty, offering a good balance of challenge and scenic beauty. Another option is the Custer State Park – Pringle loop from Custer, which is 25.5 miles long and also rated as moderate.
For experienced gravel bikers seeking a challenge, Custer County has several difficult routes. The Sylvan Lake – Sylvan Lake loop from Custer is a difficult 31.9-mile path exploring the area around Sylvan Lake. Another demanding option is the George S. Mickelson Trail – Custer loop from Hill City, which spans 55.1 miles and features significant elevation gain.
Custer County's gravel bike trails feature diverse terrain. You'll encounter smooth, crushed limestone and gravel surfaces, particularly on sections of the George S. Mickelson Trail. Other routes may include quiet roads through the Black Hills, varied terrain around lakes like Sylvan Lake, and paths through pine forests and granite peaks within Custer State Park.
The George S. Mickelson Trail is an excellent choice for families. Its smooth, crushed limestone surface, gentle grades (max 4%), and car-free environment make it ideal for a relaxed yet scenic ride. You can find various segments of this trail that are suitable for different family abilities.
Many gravel routes in Custer County offer access to stunning natural attractions. You can explore areas around Sylvan Lake, known for its towering granite pinnacles. The region is also home to the Black Hills National Forest and Custer State Park, where you might spot wildlife. Nearby, you can visit unique geological formations like the Needles Highway and the iconic Needle's Eye.
Yes, Custer County offers several loop routes. For instance, the George S. Mickelson Trail loop from Custer is a 30.9-mile loop. Another popular option is the Sylvan Lake – Sylvan Lake loop from Custer, a challenging 31.9-mile circuit.
Many trailheads for the George S. Mickelson Trail and other routes in Custer County offer designated parking areas. Specific parking information is usually available on individual route pages or local tourism websites. For general information on biking in the area, you might find resources on Visit Custer's biking section.
The area is highly rated by the komoot community, with an average score of 4.0 stars. Reviewers often praise the diverse landscapes, from granite peaks to pine forests, and the well-maintained crushed limestone surfaces, especially on the George S. Mickelson Trail, which offers a unique and enjoyable riding experience.
Yes, Custer County is close to significant cave systems. You can visit Jewel Cave National Monument Visitor Center and Wind Cave National Park, both offering unique underground exploration opportunities with stunning crystal formations and intricate calcite structures.
Custer County offers various accommodation options, including hotels, cabins, and campgrounds, particularly in and around the town of Custer and within Custer State Park. Many of these are conveniently located near trail access points, making it easy to start your gravel biking adventures.


Check out more Gravel rides throughout Custer County below and find the perfect route in your destination.
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