How do I find train tracks?

Hello, my school's photography competition theme is "track" as in train tracks, and I was wondering how I would be able to find train tracks facing East. I also don't want it on a regular road, I'm looking for something like this in the photos attached. Is there a website that shows train tracks around you? I'm going to Flagstaff, Arizona soon for the winter and I'm looking for a cool snowy photo to take. Thanks!