Description: Jack Brooks Park is known as the toughest mountain bike trails in Houston. Good mix of climbing, drops and windy single track in the trees. The trail consist of primarily single track with some roots and whimsical running through the made made structures for mountain biking. Expect a wild, single track and rabbit chasing adventure through the park. The start/finish line will be just outside the Galveston County Fair Grounds Parking Lot. Marathon, half marathon, 10K, & 5K.