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MTB trails
United States
Idaho

Ada County

The best MTB trails in Ada County

4.7

(192)

2,350

riders

118

rides

Mountain biking in Ada County offers diverse terrain across its extensive trail systems. The region features the Boise Foothills, home to the Ridge to Rivers Trail System, which provides over 220 miles of singletrack. Riders can explore varied landscapes, from scenic riverside paths along the Boise River Greenbelt to challenging mountain trails in areas like Bogus Basin. This combination of natural features ensures a range of experiences for all skill levels.

Best mountain bike trails in Ada County

  • The most…

Last updated: April 26, 2026

3

riders

#1.

Three Bears and Two Point Trails Loop

8.13km

00:48

180m

160m

Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

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Moderate

5.0

(2)

121

riders

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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4.5

(2)

94

riders

Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

63

riders

40.4km

04:17

1,080m

1,080m

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

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

Moderate

5.0

(2)

23

riders

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

21

riders

15.6km

01:36

380m

380m

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

Moderate

5.0

(1)

13

riders

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

Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

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

Moderate
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Popular around Ada County

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Tips from the Community

Steve White
April 27, 2025, Crestline Trail

wide enough for 2-way traffic; some blind spots, so be careful. Trail is smooth, so downhill bikers are often riding pretty fast.

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0

ollie MTB
September 23, 2024, Archery Range Parking

A archery range plus a junction with Ridge Crest trail, and 3 Bears

1

0

top of the sidewinder climb great views, also a 4 way junction with trail 4.

1

0

This 292-acre reserve packs a lot into a small space. There are trails with views of the city of Boise as well as trails with views of the scenic Hull's Gulch.

1

0

Chickadee Ridge is a popular short trail in Hull's Gulch which makes it good for a warm up or cool down. Definitely take it slow through here and enjoy the scenery.

0

0

Andrus
August 4, 2023, Valley View

After a good climb this is a good spot to take a break, have some water, and enjoy the view.

1

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This intersection marks the terminus of the bikeable Lower Hull's Gulch trail. Beyond this point is pedestrian only but Lower Hull's Gulch is a great little ride that riders need to take care on due to its popularity with hikes, runners, etc.

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No matter what time of year, whether you are a hiker or a cyclist, it is a beautiful area to unwind and take your mind off things! In my opinion, there are no places to rest here apart from nature itself, that should be taken into account.

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Frequently Asked Questions

What types of mountain biking terrain can I expect in Ada County?

Ada County offers a diverse range of mountain biking terrain, primarily centered around the Boise Foothills and the extensive Ridge to Rivers Trail System. You'll find everything from scenic riverside paths along the Boise River Greenbelt to challenging singletrack trails with significant climbs and descents. Areas like Bogus Basin provide mountain experiences, while the foothills offer a mix of wooded areas, meadows, and seasonal wildflowers.

Are there mountain bike trails suitable for beginners in Ada County?

Yes, Ada County has trails suitable for beginners. The Ridge to Rivers Trail System includes gradual paths that are less technical, perfect for those new to mountain biking. For example, the Twisted Sister to Rabbit Run to Junkyard Loop is an easy 4.8-mile (7.8 km) route. Another accessible option is the Spring Creek and Harlow's Hollows Loop, which is 6.5 miles (10.5 km) and also rated easy.

Where can I find more challenging mountain bike trails in Ada County?

For experienced riders seeking a challenge, Ada County offers numerous difficult trails, particularly within the Boise Foothills. The Crestline, Sidewinder, and Red Cliffs Loop is a difficult 8.8-mile (14.2 km) path known for sustained climbs and descents. Another demanding option is the Boise Foothills Loop, a long 25.1-mile (40.4 km) route with over 1000 meters of elevation gain.

Are there any family-friendly mountain bike trails in Ada County?

While specific family-designated trails aren't listed, many of the easier and moderate trails within the Ridge to Rivers Trail System can be suitable for families, depending on their skill level. The Boise River Greenbelt, though primarily paved, offers a very accessible and scenic option for leisurely cycling with children, and it connects to various parks and outdoor areas.

Can I bring my dog on the mountain bike trails in Ada County?

Many trails within the Ridge to Rivers Trail System in the Boise Foothills are dog-friendly, but it's crucial to check specific trail regulations before you go, as rules can vary. Always ensure your dog is on a leash and that you pack out any waste. The Boise River Greenbelt is also a popular spot for dog walking and cycling.

What are some notable landmarks or natural attractions I can see near the mountain bike trails?

Ada County's mountain bike trails often provide access to beautiful natural features and landmarks. You can find viewpoints like Table Rock Viewpoint offering panoramic city views. The Boise River Greenbelt itself is a major attraction, and you might pass by Quinn's Pond, known for its recreational activities. The region also features various gorges and canyons, such as Five Mile Gulch and Lydle Gulch.

What is the best time of year for mountain biking in Ada County?

The spring and fall seasons are generally considered the best for mountain biking in Ada County, offering pleasant temperatures and vibrant scenery. Spring brings wildflowers to the foothills, while fall showcases beautiful foliage. Summer can be hot, so early morning or late afternoon rides are recommended. Winter riding is possible on some lower elevation trails, but higher areas like Bogus Basin transition to winter sports.

Are there many loop trails available for mountain biking in Ada County?

Yes, many mountain bike trails in Ada County are designed as loops, offering varied scenery without retracing your steps. Examples include the moderate Three Bears and Two Point Trails Loop (5.0 miles / 8.1 km) and the more challenging Hulls Gulch Loop (9.7 miles / 15.6 km). The Shingle Creek and Dry Creek Loop Trail is another moderate option, spanning 12.6 miles (20.2 km).

How long are the mountain bike trails in Ada County typically?

The mountain bike trails in Ada County vary significantly in length. You can find shorter routes, such as the easy Twisted Sister to Rabbit Run to Junkyard Loop at 4.8 miles (7.8 km), up to much longer and more challenging rides like the difficult Boise Foothills Loop, which is 25.1 miles (40.4 km) long.

What do other mountain bikers say about the trails in Ada County?

The mountain bike trails in Ada County are highly regarded by the komoot community, holding an impressive average rating of 4.7 stars from over 180 reviews. Riders frequently praise the diverse terrain, the extensive network of trails within the Ridge to Rivers system, and the beautiful natural surroundings, from the Boise Foothills to the riverside paths.

Are there specific areas within Ada County known for mountain biking?

Yes, the primary mountain biking hub in Ada County is the Boise Foothills, home to the vast Ridge to Rivers Trail System. This system includes popular areas like Camelsback/Hulls Gulch and Military Reserve Park. Other notable locations include Bogus Basin Mountain Recreation Area for more mountainous terrain, and Eagle, which features the Ada/Eagle Bike Park.

Is parking available at the trailheads in Ada County?

Many trailheads throughout Ada County, especially those accessing the Ridge to Rivers Trail System in the Boise Foothills, offer designated parking areas. While specific parking details for every route are not listed, access points are generally well-established to accommodate visitors. It's always a good idea to check local signage upon arrival.

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Check out more MTB trails throughout Ada County below and find the perfect route in your destination.

BoiseLucky Peak State Recreation AreaAvimorHidden SpringsGarden CityEagleMeridian

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