and by the way ...
www.maps.google.com has good map to the lake, and the street view even makes it better! So you get an idea of where the sign is and what the turn in looks like . Not the satellite but the Street View with the little yellow guy.
And this is the directions , correct me if I'm wrong.
Lake Bistineau State Park
103 STATE PARK ROAD
Doyline LA 71023
From Shreveport: Take I-20 east to exit 33 (Haughton/Filmore). Go to the right and then take an immediate left on Hwy 3227, which dead ends into Hwy 164. Take a right on 164 and go about 4-5 miles until you reach the town of Doyline. Take a right at the flashing caution light (Hwy 163). keep straight about 8 miles. Look for Lake Bistineau State Park Area 1 sign to the right. Turn left to enter main gate. Stop by the Park Office for further instructions!