I would hunt that NE ravine, if the deer want to enter the north part from the south they have to cross that big field and they will head for the closet chunk of woods and follow the ravine to the big wood lot. It looks like a pinch point at the end of the ravine. Love the lay out of the property I would have fun scouting that!! That is my guess. I have similar land and the its funny how a small tree line breaking up two fields acts like a highway.