4.7
(14)
597
riders
14
rides
Mountain biking in Sierra County, located in California's Northern Sierra Nevada mountains, offers diverse terrain and extensive trail networks. The region is characterized by rugged beauty, featuring heavily forested ridgelines, deep canyons, and crystal-clear mountain streams. Riders can explore a landscape that includes glacially formed lakes and the dramatic Sierra Buttes, providing a range of challenging and picturesque experiences.
Last updated: April 24, 2026
5.0
(6)
209
riders
24.7km
01:36
100m
1,360m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
60
riders
33.6km
02:45
460m
1,730m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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22
riders
30.9km
03:06
860m
860m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.0
(1)
8
riders
23.8km
02:40
800m
800m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
1
riders
12.0km
01:14
340m
340m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
2
riders
37.6km
04:09
1,130m
1,130m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
38
riders
70.0km
06:30
1,740m
1,740m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
37
riders
64.8km
06:07
1,630m
1,630m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
7
riders
38.5km
04:00
1,010m
1,010m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
8
riders
46.9km
05:04
1,360m
1,360m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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Popular around Sierra County
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Commercial Street crosses the Downie River close to where it meets the North Yuba River. The bridge itself is an interesting curiosity, and narrow!
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Once a gold mining camp, Goodyears Bar is no longer the bustling town it once was, but it makes for a great destination on The North Yuba Trail from Downieville.
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There are two parts to Big Boulder, the climb up and the downhill. The climb is loose and steep in places, but it's worth it. With incredible views of Sierra Butes, it's a great alternative to the classic Downieville Downhill.
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Downieville maybe be known as a mountain biking town, but it's just lovely on a road bike. It is where the two rivers, the North Yuba and the Downie, meet. There are plenty of places to eat and drink in the town, as well as accommodation, if you are looking to stay a little longer.
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A steep short spur trail leads to a gorgeous pool and small waterfall in Haypress Creek. Perfect for a dip!
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Crystal clear water awaits you in this glacial lake. Perfect for soaking the feet after a long day on the trail and taking in all the scenery.
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A steep short spur trail leads to a gorgeous pool and small waterfall in Haypress Creek. Perfect for a dip!
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This is a gorgeous and technically challenging trail offering excellent views of Long Lake.
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Sierra County offers a diverse network of over 10 mountain bike trails, catering to various skill levels from easy to difficult. These routes explore the region's rugged beauty, including forested ridgelines, deep canyons, and glacially formed lakes.
The prime season for mountain biking in Sierra County is typically from late spring through early fall. During these months, trails are generally clear of snow, and the weather is favorable for exploring the diverse terrain, from high mountain passes to river valleys. Always check local conditions before heading out, especially in higher elevations like the Sierra Buttes.
While many trails in Sierra County are known for their challenging nature, there are options for those seeking an easier ride. The Downieville Classic (Shuttle Ride), for example, is rated as easy, offering a classic downhill experience through varied forest terrain over 15.3 miles. It's a great way to experience the area's famous trails with less climbing effort.
Sierra County's mountain bike trails feature a wide range of terrain. You can expect everything from endless singletrack running through heavily forested ridgelines and deep canyons to technical sections with rock gardens, granite steps, and steep descents. Areas like the Lakes Basin Recreation Area offer rocky conditions and narrow paths, while the Downieville network is famous for its fast and flowy sections, as well as challenging downhill runs.
Yes, Sierra County offers several excellent circular mountain bike routes. A popular choice is the Mills Peak Loop, a moderate 19.2-mile trail that leads through forested slopes and provides panoramic views. For a more challenging option, consider the difficult Haypress Creek – Downieville loop from Sierra City, which covers over 43 miles.
The mountain biking experience in Sierra County is highly rated by the komoot community, with an average score of 4.7 stars from over 10 reviews. Riders frequently praise the region's diverse terrain, the stunning natural beauty of the Sierra Nevada mountains, and the extensive network of trails that offer both challenging descents and scenic cross-country rides. The historic Gold Rush towns like Downieville also add a unique cultural dimension to the outdoor experience.
While many trails in Sierra County are geared towards experienced riders, some sections or shorter routes can be suitable for families with older children or those comfortable with moderate distances. For instance, the Long Lake Trail, at 7.5 miles and rated moderate, offers a scenic ride in the Lakes Basin area that might be manageable for active families. Always assess the specific trail conditions and your family's skill level before embarking on a ride.
Many trails within the Tahoe National Forest, which encompasses much of Sierra County, are generally dog-friendly, especially if dogs are kept on a leash. However, specific regulations can vary by trail and land management agency. It's always best to check with the local forest service or trail authority for the most current rules regarding dogs on particular mountain bike trails to ensure a safe and compliant ride for you and your pet.
Sierra County is rich in natural beauty and historical landmarks. While riding, you might encounter dramatic landscapes like the Sierra Buttes, glacially formed lakes such as South Tamarack Lake, and stunning viewpoints like Gold Lake Vista. The trails often follow crystal-clear mountain streams and rivers, and you'll pass through heavily forested areas, offering a picturesque experience.
Absolutely, Sierra County is renowned for its challenging mountain bike routes. The Downieville Downhill: Big Boulder Route is a moderate to difficult 20.8-mile path featuring significant elevation changes and technical sections. For an even more demanding experience, the Jamison Creek Trail is a difficult 23.4-mile route with substantial climbs and descents, characteristic of the rugged Sierra Nevada terrain.
Parking is generally available at key trailheads throughout Sierra County. For popular areas like Downieville, there are designated parking spots, especially for those utilizing shuttle services for downhill runs. In the Lakes Basin Recreation Area and near other major trail access points, you'll typically find parking facilities. It's advisable to check specific trailhead information or local visitor guides for detailed parking instructions, especially during peak season.
Many trails in Sierra County boast incredible scenic views. The Mills Peak Loop offers panoramic vistas from its forested slopes. The Lakes Basin Recreation Area, with trails like Long Lake Trail, provides stunning views of glacially formed lakes and the dramatic Sierra Buttes. You can also find viewpoints like Round Lake Overlook along some routes, offering breathtaking perspectives of the surrounding landscape.


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