Like Old Timr said, the railroad is quite cranky about you being on their property out east. We used to duck hunt a private field next to the tracks and the train drivers would call us in for being within 40 yards of the tracks. We would get a CSX truck come down the rails some times and others had the police or Mr Green jeans show up. We would not stop hunting the spot and the warden later told us they still called, but they knew we were not doing anything wrong, at the same spot. The farmer had a tractor road through the woods to get to this back field. The railroad seemed to think their control reached as far as they could see and not owned. They have a lot of liability from people playing on the tracks and enforce trespassing heavily.
I would see if you could walk on the property next to it. Ask for permission to cross it and not hunt. Call the Game Warden station and ask them directly how you are expected to access this public land if it is truly land locked. Every property is supposed to have access to a road even if its a right of way across someone else's property.