About a hundred yards north of my house in the dense woods, the remnants of an old fence can be seen running north-south over a sandy-clay hill on the edge of D'Arbonne Swamp. The forest looks the same on both sides of the rusty wire now, but it once enclosed a ten-acre field where my father chopped cotton as a teenager. When boll weevils, armyworms, and worn out soil forced Union Parish hill-country cotton farmers to seek work in paper mills, chemical plants, and on pipelines, the field reverted to forest through natural plant succession.