The RGV has a variety of mountain bike trails that span along the U.S.-Mexico border. They range from the flat switchbacks of Brownsville’s Monte Bella, a fast trail under a lush canopy of mesquite trees and challenging features in the canal spillway that surrounds it, to the Harlingen Arroyo Trails, which has rolling mixed terrain that maximizes the limited elevation along the river embankment of the Arroyo Colorado. Mission Trails offer the longest ride of the RGV trails, clocking in at just over 14 miles of singletrack, with cactus around every corner. The Sullivan City Trails are the most unique experience, with the most elevation for climbing and descending, mixed with loose gravel.
Brownsville Monte Bella Hike & Bike Trails
Address: 2525 W Alton Gloor Blvd., Brownsville, Texas 78520
Approximate Distance: 5.2 miles (perimeter trail and interior trail)
Trail Type: Multi-Use (mountain bike, trail runners, dog walkers, frisbee golf)
Difficulty Level: Mostly a green (easy) trail, with the only blue (intermediate) section in the canal that surrounds the perimeter loop. One single black (advanced) wood ramp and drop along the perimeter trail. 
Bike Rider Infrastructure: Restrooms, parking, bike repair station (1), trail markers indicating direction, difficulty and access to emergency access trail
Land Owner: City of Brownsville/City of Brownsville Parks and Recreation Department
Website: https://www.cob.us/Facilities/Facility/Details/Monte-Bella-Park-36
Harlingen Arroyo Hike and Bike Trails
Address: 1101 E. New Hampshire Street, Harlingen, Texas 78550
Approximate Distance: 5.1 miles (Henry Roberts Loop and The Thicket)
Trail Type: Multi-Use (mountain bike, trail runners, dog walkers, bird watchers)
Difficulty Level: The Harlingen Arroyo Hike and Bike Trails consist of five areas – Henry Roberts Loop (approx. 2.5 miles), Recluse (approx. 1 mile), Six Shooter Junction (approx. 1 mile), C.B. Woods (approx. 1 mile), The Dragonback (approx. 1 mile) and The Thicket (approx. 2.6 miles). All areas are connected by the Arroyo Hike and Bike paved trail, which itself connects Arroyo Park, McKelvey Park, C.B. Woods Park, and Dixieland Park in the heart of the city of Harlingen. The trail is mostly green (easy), with several blue (intermediate) trail features such as drops, jumps, steep climbs and skinny wood bridges. One section of Henry Roberts Loop, called “The Hub”, is being developed as a MTB skills section, with several options to ride green, blue, and eventually single black jumps.
Bike Rider Infrastructure: Restrooms, parking lot, trail markers indicating direction and difficulty
Land Owner: City of Harlingen/Harlingen Parks and Recreation Department
Website: http://www.myharlingen.us/page/parksandrec.parks
Map courtesy of VORBA Member, Everett Castellano
Mission Trails
Address: 1414 S. Conway Avenue, Mission, Texas 78572 (Google Map “Mission Hike and Bike Trails”)
Approximate Distance: 14 miles
Trail Type: Multi-Use (mountain bike, trail runners, dog walkers)
Difficulty Level: Mostly a green (easy) trail, with some blue (intermediate) sections after the cattle guard. Watch out for cactus!
Bike Rider Infrastructure: restrooms, parking lot, covered area, trail markers indicating direction and difficulty
Land Owner: City of Mission/Mission Parks and Recreation Department
Website: https://missiontexas.us/city-departments/parks-and-recreation/city-parks/
Mission Trails map coming soon!
Sullivan City Trails
Address: Old Military Highway, Sullivan City, Texas 78595 (Google Map “Sullivan MTB Trails”)
Approximate Distance: 5.3 miles
Trail Type: Multi-Use (mountain bike, trail running, and motocross)
Difficulty Level: One of the most unique trails in the RGV, the Sullivan City Trails exist on mostly gravel and dirt singletrack trails that are shared with local motocross riders, which sometimes cause ruts and loose turns along the trail. The trail would be categorized as mostly an intermediate (blue) trail just because of the loose rocks, elevation changes, and difficulty in some sections. It is recommended you go with a local who knows the trail if you are new, as the trail is not marked with directional arrows or warning signs.
Bike Rider Infrastructure: Limited parking, NO RESTROOMS, no covered areas
Land Owner: Los Ebanos Land & Cattle Company (private)
Website: n/a
Map courtesy of VORBA Member, Everett Castellano
Valley Off-Road Bicycling Association (VORBA) 