I've worked out there and East Texas is the "Piney Woods" area, which is really just the start of the rolling terrain and pines that stretches all the way to N Carolina. It is great land for golf and I have heard of many owners trying to get exclusive Sand Hills types facilities out there.
I had a site north of there, and will say that the soil appears to be sandy, but doesn't go very deep before hitting old red clay, and the sand isn't that porous and clogs up easily. We had wet spots all around our catch basins.