The Swan Family Bridge – CTC Trail loop from Vienna/Fairfax–GMU

Mountain biking trails

The Swan Family Bridge – CTC Trail loop from Vienna/Fairfax–GMU

Moderate

4.9

(7759)

12,632

riders

The Swan Family Bridge – CTC Trail loop from Vienna/Fairfax–GMU

03:13

43.9km

290m

Mountain biking

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary. The starting point of the route is accessible with public transport.

Last updated: July 19, 2026

Tips

Includes a segment in which cycling is not permitted

After 40.4 km for 69 m

Waypoints

Start point

Train Station

Get Directions

9.94 km

The Swan Family Bridge

Highlight • Bridge

Bridge steps are tall for a bike unless you know how to climb in motion.

Tip by

10.4 km

CTC Trail

Highlight • Trail

stay on the east side of the river. an old West section is now closed

Tip by

13.6 km

Creek Access Point

Highlight • River

Great spot for a short break during mountain bike or hiking trips during spring and summer. it gives full access to the river bank

Tip by

14.1 km

Cross County Trail – Section 7: Difficult Run Stream Valley

Highlight • Trail

archery program effective from September to February most of the years

Tip by

23.7 km

Lake Fairfax Mountain Bike Trails

Highlight • MTB Park

Lake Fairfax Park offers more than ten miles of sweet singletrack for riders of all skill levels. On top of that the park has a pump track and several jump …

Tip by

28.6 km

Colvin Run Mill Park

Nature Reserve

30.8 km

Difficult Run Stream Crossing on Cross County Trail

Highlight • River

This is one of the points where the Cross County Trail crosses Difficult Run Stream. Depending on the amount of rainfall and the time of year, water levels may be elevated, so it's important to exercise caution.

Tip by

31.9 km

Difficult Run

Highlight • River

This stream branches off from the Potomac River, winding along the Difficult Run Trail. Its name isn't from the challenging nature of the trail itself, but rather from the sharp …

Tip by

32.3 km