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      Steward: David Starr

      Email us:

      Nearest City
      Sanger/Pilot Point

      From Denton take I35 north to Sanger. In Sanger take the FM455 exit and go east on FM-455 toward Pilot Point. The park entrance is 2 miles after you cross the Lake Ray Roberts Dam on FM-455. From Frisco take HWY 289 (Preston Road) north to HWY 380. Take HWY 380 west to HWY 377. Take HWY 377 north to FM-455 (this is before Pilot Point). Take FM-455 west to the park entrance. The trailhead is near the end of the main park road. When you see the road leading downhill straight to the lake, look for the trailhead parking area on the right (boat ramp on left).

      Single Track - Multiple Loops

      9.5 - 11 miles

      Land Manager
      Ray Roberts Lake State Park
      Call 940-686-2148 for latest trail conditions

      8AM - 10AM (gates open at 6AM, HQ open at 8AM)

      Isle du Bois, which means "Island of the Trees," was opened in 1993 and is located on the southeast corner of Lake Ray Roberts which is north of Denton. The trail was finally completed by Dorba volunteers in 2005 with the total length of the trail being under 12 miles. The terrain is rockier than most of Dorba's trails and Isle du Bois has several nice hills that have been incorporated into the trail which are strewn with rock gardens of varying technical difficulty. The most difficult sections of the trail are found on Loop D and there are two bypasses marked for those riders wishing to miss the worst of the rocky climbs. Loop E runs northeast from the park along the rocky lake shore and offers some great views of Ray Roberts while loop D highlights the lake vista from atop the rocky center ridge with lake views common during the leafless Winter months. Loop C has some speedy sections with short steep climbs sprinkled here and there. To ride the entire trail take every left intersection except for the two by-passes on Loop D, which are marked and going left there will cause you to miss the more technical rocky climbs. The trail is marked with emergency location posts (indicated by a red/white reflector stripe and a number). These numbers do not correlate to mileage. The emergency locations are indicated on the trail map that the Park Rangers/Emergency personnel have. If you have an emergency situation, you can tell the park/EMTs what number you last saw and they will be able to locate you more rapidly. There is a $7 per person entrance fee or State Park Pass is required for entry into the park. The trail is closed when wet so make sure to call the park office at 940-686-2148 for trail information. Follow the signs in the park to the "Dorba Trail" which will be the first large paved parking lot on your right as you approach the lake.

      • Drinking water
      • Flush toilets
      • Showers in the camping areas
      • Camping
      • Gazebos and picnic areas
      • Swimming beach
      • Gas/food in Sanger and Pilot Point
      Primary Trail Type: Cross-Country
      Land Manager: Texas Parks and Wildlife
      Isle du Bois google parking directions
      Activities Click to view
      Region Details
      • 2
      • 2
      • 5
      • 2

      Region Status
      Open as of Sep 3, 2022
      Local Trail Association


      Avg Trail Rating
      Trails (view details)
      Trails Mountain Bike
      Trails E-Bike
      Trails Hike
      Trails Trail Running
      Trails Horse
      Total Distance
      12 miles
      Total Descent
      933 ft
      Total Vertical
      96 ft
      Highest Trailhead
      731 ft
      Ridden Counter

      Photos of Ray Roberts Lake Isle De Bois Unit Mountain Bike

      81 |
      Oct 8, 2021 @ 11:28am
      Oct 8, 2021
      46 |
      Oct 8, 2021 @ 11:28am
      Oct 8, 2021
      trail: IDB Loop C
      110 |
      Sep 25, 2021 @ 7:48am
      Sep 25, 2021
      trail: IDB Loop D
      109 |
      Sep 19, 2021 @ 10:41am
      Sep 19, 2021
      trail: IDB Loop C
      171 |
      Sep 19, 2021 @ 10:32am
      Sep 19, 2021
      82 |
      Jun 2, 2020 @ 7:52pm
      Jun 2, 2020
      trail: IDB Loop C
      341 |
      Jul 28, 2019 @ 1:36pm
      Jul 28, 2019
      trail: IDB Loop C
      249 |
      Jul 28, 2019 @ 1:36pm
      Jul 28, 2019

      Videos of Ray Roberts Lake Isle De Bois Unit Mountain Bike

      Isle de Bois MTB Trail, Lake Ray Roberts

      1:0:02 | 102 | Jan 13, 2022
      Rocky Climbs and Tight Downhill || Isle Du...
      trail: IDB Loop D
      7:21 | 436 | May 17, 2021 , Pilot Point
      Rocky Climbs and Tight Downhill || Isle Du...
      trail: IDB Loop C
      7:21 | 279 | May 17, 2021 , Pilot Point
      Isle Du Bois State Park Mountain Bike Trail...

      25:32 | 329 | Dec 27, 2020
      Do you like techy climbs?! | Mountain Biking...

      10:12 | 242 | Dec 27, 2020
      Mountain Biking at Isle du Bois | Rock Gardens...
      trail: IDB Loop D
      8:14 | 1099 | Jul 27, 2018 , Pilot Point

      Recent Trail Reports

      Activity Feed

      user #723647redrider3141wishlisttrailIDB Loop C
      Sep 24, 2022 @ 6:13pm
      2 days
      user #1918625Fire9160wishlistrouteIsle Du Bois Full Lap
      Sep 4, 2022 @ 2:58pm
      Sep 4, 2022
      user #3094888PatrickjaquezwishlisttrailIDB Loop C
      Sep 4, 2022 @ 5:51am
      Sep 4, 2022
      user #2501811davidmwade2commentreportIsle Dubois Horse Trail Connector
      Sep 3, 2022 @ 6:28pm
      Sep 3, 2022
      user #1280088DstarraddreportDeer Ridge and 10 more
      Sep 3, 2022 @ 1:22pm
      Sep 3, 2022

      Recent Comments

      user #2501811davidmwade2reportIsle Dubois Horse Trail ConnectorZ
      Sep 3, 2022 @ 6:28pm
      Sep 3, 2022
      user #2412230rwent1trailIDB Loop CTerrible trails. C is like B and A in that...
      Sep 20, 2021 @ 11:57am
      Sep 20, 2021
      user #2412230rwent1trailIDB Loop BTerrible trails. Massive abundance of roots,...
      Sep 20, 2021 @ 11:55am
      Sep 20, 2021
      user #2412230rwent1trailIDB Loop AA, B, and C are miserable excuses for trails....
      Sep 19, 2021 @ 4:04pm
      Sep 19, 2021
      user #1584468TulkastrailIDB Inner Loop DInner Loop D--this option is a "black diamond"...
      Dec 7, 2020 @ 5:17pm
      Dec 7, 2020

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike1112 miles932 ft5 miles95 ft
      E-Bike1112 miles932 ft5 miles95 ft
      Hike1112 miles932 ft5 miles95 ft
      Trail Running1112 miles932 ft5 miles95 ft
      Horse32 miles46 ft3,556 ft46 ft
      • By markholloway Trailforks & contributors
      • Admins: Trail Stewards
      • #13750 - 17,914 views
      • ray roberts lake isle de bois unit activity log | embed map of Ray Roberts Lake Isle De Bois Unit mountain bike trails | ray roberts lake isle de bois unit mountain biking points of interest

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