North of Houston near Huntsville, the 700 acre General Sams Off-Road Park is open to ATV users. There are over 35 trails open to ATV riding.
To reach the ATV riding trailhead at the General Sams Off-Road Park from Houston, take exit 123 FM 1696 off I-45 (4miles North of Huntsville). Turn left, then go West (under the overpass) 2 miles on FM 1696 to HWY 75. Turn right (North) on HWY 75 and go 5 miles *. Turn left on Bishop Road and go 1 mile. The Red Gate will be open.
Overall, General Sams Off-Road Park is the 19th most popular ATV riding trail of all 27 ATV trails in Texas.