Northwest of San Antonio near Bandera, the 5,369 acre Hill Country State Natural Area in Texas Hill Country has a wide variety of terrain and a mixture of single track and old jeep trails totaling 40 miles of mountain bike trails. Hillier than Austin, which is about two hours away, Bandera offers some longer climbs than Austin cyclists are used to, which in turn means some lubed downhill rewards. Moco miles of well-marked trails, an excellent swimming hole and some of the best enchiladas in the state will send you home from this day with a big silly grin. Bandera is the heart of Dude Ranch country so remember that bikers always yield to horses. There are a ton of trail options here so there are mountain bike rides for all levels. Stick to the double track lower elevations trails for easier mountain bike rides or pick out a killer loop with lots of single track and hills for a difficult grunt.
To reach the mountain biking trailhead from Austin, head south on US35. Follow SR46 west to Boerne and Bandera. In Bandera, head south on SR173 and then take a quick right on SR1077 westbound. After turning to dirt, follow the signs.
To reach the mountain biking trailhead from San Antonio, head northwest on Highway 6 (aka Bandera Road) from Loop 410 or Loop 1604.