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Nevada County

Grass Valley

The best MTB trails around Grass Valley

4.7

(17)

284

riders

16

rides

Mountain biking around Grass Valley offers diverse terrain within the Sierra Nevada foothills of California. The region features extensive trail networks, ranging from smooth, flowy singletrack to challenging granite rock gardens. Significant elevation changes contribute to varied riding experiences across rolling hills and near the South Yuba River canyon. This landscape provides a wide array of mountain bike trails suitable for various skill levels.

Best mountain bike trails around Grass Valley

  • The most popular mountain bike trail is Stamp Mill Ruins – Nevada City loop from Nevada City, a 23.8 miles (38.3 km) trail that takes 3 hours 14 minutes to complete. This route offers a moderate challenge through varied terrain.
  • Another top favourite among local mountain bikers is Mountainbike loop from Grass Valley, an easy 8.8 miles (14.1 km) path. This route provides a more accessible ride through the local landscape.
  • Local mountain bikers also love the Nevada City – Stamp Mill Ruins loop from Northern Queen Inn, a 56.5 miles (90.9 km) trail leading through the Sierra Nevada foothills, often completed in about 7 hours 31 minutes.
  • Mountain biking around Grass Valley is defined by rolling hills, diverse singletrack, and granite rock gardens. The network offers options for different ability levels, from easy loops to difficult, longer routes.
  • The routes in Grass Valley are highly rated by the komoot community with an average score of 5.0 stars from 8 reviews. More than 200 mountain bikers have used komoot to explore Grass Valley's varied terrain.

Last updated: October 11, 2026

39

riders

#1.

Stamp Mill Ruins – Scotts Flat Trail loop from NCNGRR Museum

41.5km

03:30

790m

790m

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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Moderate

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard
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Tips from the Community

Wilko Koning
July 23, 2024, Scotts Flat Trail

Scotts Flat Trail is an MTB trail that is also used for hiking for the lack of other trails in the area. But be aware you'll encounter mountain bikers on this trail so pay attention and give them space.

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The Willo Steakhouse and Saloon is an iconic landmark on the junction of Newtown Road and Historic Highway 49. The exterior is instantly recognizable with its neon signage and large carved wooden bear statue. This is a great place to stop when exploring the area or completing the scenic LeMond Loop (Newtown Loop). The LeMond Loop is named for the 2000 event when Tour de France champion Greg LeMond rode the route with 200 local riders.

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mtm05005
June 8, 2024, Nevada City

Nevada City is a quaint city that is the gateway to Tahoe National Forest. The city was founded during the California Gold Rush and the downtown area still maintains some of the feel from this era. It is a great place to start a tour or take a break during a longer ride.

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mtm05005
February 19, 2024, Nevada City

Nevada City is a quaint city that is the gateway to Tahoe National Forest. The city was founded during the California Gold Rush and the downtown area still maintains some of the feel from this era. It is a great place to star a tour or take a break during a longer ride.

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Here in the middle of Nevada City, you can find the ruins of an old stamp mill. Stamp mills became popular in this area in 1883 when hydraulic mining was outlawed. They use wood or metal beams to crush ore.

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Frequently Asked Questions

How many mountain bike trails are there around Grass Valley?

There are over 10 mountain bike trails available around Grass Valley, offering a variety of experiences for different skill levels. The region features extensive trail networks within the Sierra Nevada foothills.

What kind of difficulty levels can I expect on mountain bike trails in Grass Valley?

Grass Valley offers a diverse range of mountain biking trails. You'll find options from easy paths, with 2 routes categorized as easy, to more challenging rides, including 8 moderate and 4 difficult routes. The terrain varies from smooth, flowy singletrack to technical granite rock gardens.

When is the best time of year to go mountain biking in Grass Valley?

The optimal season for mountain biking in the western part of Nevada County, including Grass Valley, spans from late fall through early summer. This period generally offers the most favorable trail conditions.

Are there any family-friendly mountain bike trails in Grass Valley?

Yes, there are family-friendly options available. For an accessible ride, consider the Mountainbike loop from Grass Valley, which is an easy 8.8-mile (14.1 km) path suitable for a more relaxed outing.

Are there any dog-friendly mountain bike trails in Grass Valley?

While specific regulations can vary by trail, many trails in the Grass Valley area, especially those managed by local organizations, are generally dog-friendly. It's always best to check local signage or the specific trail's guidelines for the most current information regarding pets.

What can I see along the mountain bike trails in Grass Valley?

Many trails offer scenic views and pass by interesting landmarks. You might encounter historical sites like the Stamp Mill Ruins or ride near the South Yuba Trail, which is part of the picturesque South Yuba River State Park. The region is known for its rolling hills and lush landscapes.

Are there mountain bike trails with scenic views in Grass Valley?

Absolutely. The Sierra Nevada foothills provide a stunning backdrop for many rides. Trails often wind through blue skies, lush green trees, and offer glimpses of the diverse terrain, including the steep canyon of the Yuba River. The Stamp Mill Ruins – Nevada City loop from Nevada City offers varied terrain that includes scenic sections.

Are there any long-distance or challenging mountain bike loops available?

For those seeking a longer and more challenging ride, the Nevada City – Stamp Mill Ruins loop from Northern Queen Inn is a difficult 56.5-mile (90.9 km) trail that leads through the Sierra Nevada foothills and can take over 7 hours to complete.

What do other mountain bikers enjoy the most about mountain biking in Grass Valley?

The mountain bike routes in Grass Valley are highly rated by the komoot community, with an average score of 5.0 stars from 8 reviews. Riders often praise the diverse singletrack, the variety of terrain from flowy sections to granite rock gardens, and the overall beauty of the Sierra Nevada foothills.

Are there circular mountain bike routes in Grass Valley?

Yes, many of the mountain bike trails in Grass Valley are designed as loops, allowing you to start and end at the same point. Examples include the Stamp Mill Ruins – Nevada City loop from Valentine and the Stamp Mill Ruins – Nevada City loop from Northern Queen Inn.

Is public transport available to access mountain bike trails in Grass Valley?

While Grass Valley has some local public transport options, direct access to all trailheads via public transport might be limited. It's generally recommended to check local transit schedules and routes in advance, or consider driving to trail access points.

Are there any permits required for mountain biking on trails in Grass Valley?

Most public mountain biking trails in the Grass Valley area do not require specific permits for recreational use. However, some private lands or specific parks might have their own regulations. It's always a good idea to check with the local land management authority or trail organization, such as the Bicyclists of Nevada County (BONC), for any specific requirements.

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