I often drive around with the intention of getting lost and look at maps later to figure out where I was driving. I saw this "path" cut through the forset in the area on Google Maps. I live in Bloomington, IN and followed it (on Google) all the way over to outside Terre Haute
to the west.
It's not a railroad, at least not any more, and I don't see any power lines on it from the satellite images, but they could just be too small to see I suppose.
I apologize for the scant information.