Statistics for occurrence #1 of “Susquehanna river” in chapter 25, page 256 of John Dimitry , A. M., Confederate Military History, a library of Confederate States Military History: Volume 10.1, Louisiana:

...hen marching through Maryland to Gettysburg. Hays' brigade was camped peacefully near the historic Pennsylvania village on the 26th. Ewell then advanced, with Gordon in the van, to York, near the Susquehanna river and the capital of Pennsylvania, 75 miles north of Washington. Johnson's division crossed at Boteler's ford and marched to Carlisle, still further north, and west of Harrisburg. In the last days...
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Susquehanna River (Maryland, United States) 30 0 0 0 0 user votes

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