On the WA side of the river I think it's BNSF on the OR side of the river I think it's UP. They both have the easements for their tracks and can cite for trespassing. I for one don't want to have to hire an atty to argue before a judge that I in my opinion crossing the rr tracks has been going on for many years and now I'm claiming a prescriptive easement across the tracks. My pockets are not that deep.