Dirt Rag holds their annual DirtFest at Allegrippis and with good reason: 30 miles of undulating singletrack plus a campground right on the lake. Bring your bike, boat, and swimsuit to take advantage of everything Allegrippis has to offer!
Big Bend State Park (Texas)
Big Bend State Park is, like the state of Texas, massive, and while there may not be a lot of singletrack, there are dozens of miles of jeep and gravel roads to explore the rugged environment on your mountain bike. The Big Bend campground features drinking water (a big plus in the desert!) and sites are just $5-8 per night. This is adventure, Texas-style.