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Routes
Mountain biking trails
United States
Colorado
Chaffee County

Vitamin B Trail Loop

Moderate

4.8

(4827)

10,984

riders

Vitamin B Trail Loop

02:08

20.2km

510m

Mountain biking

The Vitamin B Trail Loop is a 12.6-mile mountain biking route in Buena Vista, Colorado, known for its highly technical terrain.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

10.3 km

Vitamin B Trail

Highlight (Segment) • MTB Park

Vitamin B is an absolutely gem for all mountain bikers who love technical riding up and down. It is a beautiful mix of fun and fast parts combined with tricky …

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B

20.2 km

End point

Parking

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Way Types & Surfaces

Way Types

10.6 km

9.68 km

Surfaces

20.2 km

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (2,950 m)

Lowest point (2,470 m)

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Weather

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Today

Wednesday 8 July

28°C

12°C

48 %

Additional weather tips

Max wind speed: 15.0 km/h

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Comments

October 2, 2023,Vitamin B Trail – Buena Vista, CO 🇺🇸
Very nice, technically demanding descent. Right in the middle is the free Turtle Rock Campground. 👌

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Frequently Asked Questions

What makes the Vitamin B Trail Loop so challenging for mountain bikers?

The Vitamin B Trail Loop is renowned for its extreme technical difficulty, often rated as 'Very Difficult' or 'Double Black Diamond' by local riders. It features extensive 'slow jank,' awkward gaps, numerous ledge drops, challenging rock gardens, and steep, rocky sections that often require hike-a-bike, especially in the initial mile. Riders should expect punchy climbs, loose rock fields, and narrow, exposed skinny lines, making it unsuitable for beginners.

What kind of terrain can I expect on this mountain bike trail?

The terrain is characterized by gnarly technical riding. You'll encounter a mix of obstacles including ledge drops, rock gardens, rollers, and steep rock rollers. There are also punchy climbs, loose and technical rock fields, and narrow chutes. While predominantly technical, some sections offer fast and flowy singletrack, interspersed with steep descents and uphills. The final stretch to the parking lot is particularly rock-filled.

Where is the best place to park for the Vitamin B Trail Loop, and are shuttles available?

For the Vitamin B Trail Loop, shuttling to the trailhead or riding up CR375 are recommended access options, as the trail is best enjoyed downhill. This helps manage the extreme difficulty. Specific parking areas are typically found near the start of CR375 or designated trailheads within the Fourmile Travel Management Area.

Are there any permits or fees required to ride the Vitamin B Trail Loop, or within the Fourmile Travel Management Area?

The Vitamin B Trail Loop is located within the Fourmile Travel Management Area. While specific permits for riding this trail are generally not required, it's always advisable to check the latest regulations for the Fourmile Travel Management Area regarding any potential fees or specific use permits that might be in effect for the area as a whole.

Is the Vitamin B Trail Loop dog-friendly?

Information regarding dog-friendliness for this specific trail is not explicitly stated. However, as a general rule for technical mountain biking trails, it's often not recommended to bring dogs due to the challenging terrain and potential hazards for both the animal and other riders. Always check local regulations for the Fourmile Travel Management Area regarding dogs on trails.

What is the best time of year to mountain bike the Vitamin B Trail Loop?

The best time of year to mountain bike this trail is typically during the late spring, summer, and early fall months. During these periods, the weather is generally more favorable, and the trail is free of snow. Always check local weather conditions and trail reports before heading out, as conditions can change rapidly, especially at higher elevations.

What kind of views and scenery can I expect along the route?

Riders on the Vitamin B Trail Loop can anticipate breathtaking vistas. The trail offers amazing views, often overlooking the majestic Collegiate Peaks. The path itself winds through rugged granite outcroppings, adding to the dramatic and scenic beauty of the surroundings.

What's the best way to experience the Vitamin B Trail Loop, given its difficulty?

Given its extreme difficulty and technical nature, the Vitamin B Trail Loop is best enjoyed downhill. Many experienced riders opt for shuttling to the trailhead or riding up CR375 to access the start, allowing them to focus on the challenging descents and technical features rather than exhausting themselves on the climbs.

Does the trail intersect other well-known paths?

Yes, the route for the Vitamin B Trail Loop also passes through significant sections of the official trails named Vitamin B, Fourmile Spur Road, Lenhardy Cutoff Road, and Fourmile Cutoff Road.

Are there any specific notable features or sections on the trail?

Yes, the trail is known for specific demanding features like 'Flight for Life,' which requires careful consideration and scouting of lines before attempting. It also offers sessionable features with different line choices, appealing to advanced riders looking to hone their skills. The trail itself, formerly known as 'Supernatural,' is a local favorite in the Arkansas River Valley.

What should I bring for a mountain bike ride on this trail?

Given the trail's technical and challenging nature, it's crucial to be well-prepared. Bring plenty of water, snacks, a first-aid kit, and essential bike repair tools (spare tube, pump, multi-tool). Due to the remote and difficult terrain, consider carrying a GPS device or a fully charged phone with offline maps. Appropriate protective gear, including a full-face helmet and pads, is highly recommended.

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