Rocky Hill is the best 45 minute trip that you can make from Austin. The main loop is about 26 miles total and you'll encounter a wide variety of trails, from the straightforward jeep trails to ledges, short climbs, twists through the trees, bunny hops over logs and more. And Fat Chuck is one hell of a climb!
Although there are many areas that the trial is actually rocky, it might as we have been named "Sandy Hill Ranch" because there are more sandy trails than anything else. Every time I leave, I end up cleaning out about a pound of sand out of my drive train. Once you finish your ride, on some days the cafe is open, but not what it used to be.
Location: Smithville, TX
Take Highway 71 east to Route 153. Follow 153 east about 2-3 miles to the entrance of Rocky Hill Ranch. Look for the old bike hanging from the gateposts.