To narrow this down, it seems to be a sandhill / pine barrens type of area...
My first guess, due to famililarity would be the Pine Barrens of long island, Baiting Hollow area...
However, other areas could include:
- Cape Cod sand hills (not as much movement to the land as you'd see there)
- South Jersey (east of Pine Valley)
- NC SandHills (would have to be in the winter - notice the trees being bare) Also, don't see any clay which you might expect in some parts of the land / soil being used for grading.