I was in York the day before a larger railfanning trip and got a chance to see some of the local sights.
I’ve always found the former PRR Octoraro Branch interesting. It runs through a rural area that happens to be almost directly in the middle of the Northeasern Megalopolis. It’s also had a changing shortline scene since the beginning of Conrail. I caught the power from its latest owner, East Penn, laying over in the operational HQ of Kennett Square.