From the CoE Ft Worth Hunting Guide
What vehicle restrictions are in effect on Corps of Engineer areas?
The operation of all vehicles, including, but not limited to, motorcycles, all terrain
vehicles (ATV's), bicycles, automobiles, trucks, and any other vehicles (see CFR Title
36, Section 327.2 (a) for vehicle definition) off authorized roadways is prohibited.
Exception: ATV permits are available at Wright Patman Lake.
Vehicles must be parked on Corps designated areas or along roadsides on Corps
property without blocking the passage of other vehicles or gate openings. Parking on
other public roadways is at your own risk and contacting local law enforcement is
recommended. Access to the interior of designated hunting areas is authorized by foot
or boat only.
Wasn't born in Texas, but I got there as fast as I could.