FATMAP by Strava

Isle Du Bois: Loops A, B & C

A rocky series of stacked loops along the edge of Lake Ray Roberts.

Mountain Biking Moderate

7 km
114 m
114 m
0-1 hrs
Low Point
198 m
High Point
221 m
Isle Du Bois: Loops A, B & C Map

Isle du Bois is one of the rockiest mountain biking trail systems in the greater-DFW area. For those up to the challenge, as well as the drive, a series of stacked loops tours the park through beautiful forests, open meadows, sand washes, and alongside the lake, and there is something for just about everyone. Whether you want a quick rip on groomed singletrack, or a slow technical ride with rock gardens, technical climbs, and gnarly descents, IDB hosts over 10 miles of some of the best riding in North Texas.


IDB, as referred to by locals, consists of 5 stacked loops with varying degrees of difficulty. This ride tours loops A, B, and C, which overall could be considered intermediate if you're comfortable riding through some rock gardens and roots. Loop D is considered the most challenging, but two expert sections can be bypassed if you want to explore loops D and E. Each junction is well-marked, and the trails are relatively easy to navigate, plus locations signs are placed along the trail in the event of an emergency. Bear in mind, they do not coordinate with the mileage.

As with most state parks in Texas, a small entry fee is required to enter the park, but full amenities are available within. A Texas State Park Pass could also be an option as it would allow access into other top riding areas, including Cedar Hill, Dinosaur Valley, or Palo Duro Canyon in the panhandle. Restrooms, drinking water, picnic pavilions, and lake access are all available within the park.




Mostly stable trail tread with some variability, with unavoidable obstacles 8in/20cm tall or less. Other obstacles such as rock gullies and steep sections may exist. Ideal for lower intermediate riders.

Medium Exposure

2 out of 4

The trail contains some obstacles such as outcroppings and rock which could cause injury.


2 out of 4

Away from help but easily accessed.

Best time to visit

all year round


  • Flow
  • Technical
  • Picturesque
  • Singletrack
  • In the forest
  • Roots
  • Rock Gardens

Guidebooks in this area