Luftlinie
As the crow flies, Lycoming County is about northwest of Philadelphia and east-northeast of Pittsburgh. Lycoming Creek has its river source in Tioga County and is in length from the Tioga County / Lycoming County line to its confluence with the West Branch Susquehanna River at Williamsport. Smaller streams feeding Lycoming Creek include Pleasant Stream, Grays Run, Roaring Branch, Hoagland Run, and Trout Run.