Running through Oxford, Pa. on weekdays is the East Penn RR:
In nearby Newark, DE. some Northeast Corridor action:
Not too far away is Perryville, MD. on the Northeast Corridor:
And also some Norfolk Southern action in Perryville:
And the CSX Tropicana Juice Train too:
And all around the area are the SEPTA commuter lines:
Harrisburg, Pa.:
And last but not least, The Strasburg Railroad: