The Double Oak Trail at Oak Mountain State Park, also known as the “Red Trail”, has something for mountain bikers of any skill level, from kids and beginners to experts. Built and maintained by local volunteers with the non-profit trail group Birmingham Urban Mountain Pedalers, (aka BUMP), the Red trail is home to their annual “Bump and Grind” Cross Country Mountain Bike race, held each spring. At approximately 22 miles long (and growing), the mountain bike trail is a mix of mostly tight singletrack and “ doubletrack” trail with about 1600 feet of combined climbing if you ride the entire loop.