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Routes
Mountain biking trails
United States
Virginia
Fairfax County

Fountainhead Full Loop

Hard

3.0

(7)

59

riders

Fountainhead Full Loop

01:45

20.1km

190m

Mountain biking

The Fountainhead Full Loop offers a difficult mountain biking experience, winding through wooded areas with dynamic terrain. You'll navigate hard-packed, fast singletrack, encountering technical features like berms, jumps, and rock gardens. This challenging route covers 12.5 miles (20.1 km) with an elevation gain of 627 feet (191 metres), typically taking…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

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1

230 m

Fountainhead Regional Park Mountain Bike Trails

Highlight • MTB Park

Fountainhead Regional Park's mountain bike trails offer nearly 15 miles of single-use loops with features like steep climbs, rock gardens, and fast descents. The trail system includes beginner, intermediate, and …

Tip by

2

14.7 km

Start Black Loop

Highlight • MTB Park

Fountainhead features various loops of awesome singletracks for novice, intermediate and expert riders. On the black route several rock gardens going up and downhill will keep you on your toes. …

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B

20.1 km

End point

Parking

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Way Types & Surfaces

Way Types

19.3 km

550 m

205 m

< 100 m

< 100 m

Surfaces

19.8 km

205 m

< 100 m

< 100 m

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Elevation

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Monday 8 June

26°C

16°C

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Frequently Asked Questions

Where can I park to access the Fountainhead Full Loop trail?

You can park directly at Fountainhead Regional Park Mountain Bike Trails in Fairfax, Virginia. The park offers dedicated parking facilities for mountain bikers accessing the trail system.

Are dogs allowed on the Fountainhead Full Loop mountain biking trails?

The Fountainhead trail system is unique in the region for being a mountain bike-only trail. This means dogs are generally not permitted on the mountain biking trails themselves to ensure rider safety and preserve the focused riding experience. Please check park regulations for other areas within Fountainhead Regional Park.

What is the best time of year to ride the Fountainhead Full Loop?

The trail is well-maintained and can be enjoyed through much of the year. Spring and fall typically offer the most pleasant riding conditions with cooler temperatures and vibrant scenery. It's always a good idea to check local weather and trail conditions before heading out, especially after heavy rain, as some sections can become slick.

Do I need a permit or is there an entrance fee for Fountainhead Regional Park?

Fountainhead Regional Park, where the trail is located, may have specific operating hours or require a fee for entry or parking, especially during peak seasons. It's advisable to check the official website for Fountainhead Regional Park or NOVA Parks for the most current information regarding any permits, entrance fees, or operational changes before your visit.

Is the Fountainhead Full Loop suitable for beginners?

The Fountainhead Full Loop is rated as 'difficult' overall. While it's a stacked trail system with Green, Blue, and Black loops, the full loop incorporates challenging sections. Beginners might find the Green Loop manageable, but even it has features that some consider closer to a blue trail. The full experience is best suited for intermediate to advanced riders looking for technical challenges.

What kind of terrain can I expect on the trail?

The trail primarily consists of singletrack with hard-packed, fast, and flowy sections. You'll encounter a variety of technical features, including man-made berms, jumps, drops, rock gardens, ladder bridges, log rides, and challenging switchbacks. There are significant elevation changes with punchy climbs and rewarding downhill runs.

Are there any viewpoints or scenic spots along the route?

Yes, as you navigate through the wooded areas, several sections offer amazing views, particularly of the Occoquan River. While largely immersed in the forest, occasional overlooks provide scenic breaks and opportunities to appreciate the natural surroundings.

Does the trail intersect other well-known paths?

Yes, the route passes through sections of the Black Loop, Blue Loop, and Green Loop trails, which are the core components of the Fountainhead system. It also briefly touches the Bull Run Occoquan Trail.

What makes Fountainhead Full Loop unique for mountain biking?

Fountainhead is unique in the region for being a mountain bike-only trail, which contributes to a focused and uninterrupted riding experience. It also features a directional flow system, enhancing safety and the overall ride. The trail was redesigned with input from the International Mountain Biking Organization (IMBA), resulting in a challenging and rewarding system for skill progression.

What is the recommended strategy for tackling the Black Loop at Fountainhead?

The Black Loop is designed for advanced riders, offering significant technical cross-country style riding. It features difficult rock gardens, steeper climbs and descents, and optional 4 to 6-foot drops, as well as ladder bridges and challenging log rides. Riders should be prepared for these features and consider their skill level before attempting it. It's a great place to advance technical skills.

Are there any amenities available at Fountainhead Regional Park for mountain bikers?

While the trail itself is rugged, the park generally offers amenities typical of a regional park, which may include restrooms and water access near the trailhead or parking areas. It's always wise to carry enough water and supplies for your ride, as services directly on the trail are limited.

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