 The Blue Rock Path, according to a separate tradition, followed the "French Creek Path" closely from Phoenixville west to Conestoga (and may be the same path).From Conestoga, the Blue Rock Path went west to the Susquehanna River and crossed it at a ford south of modern Washington Boro, going west to York County.The Monocacy Path led west from Conestoga across the Susquehanna River to York, then southwest to Hanover, then into Maryland and Frederick there (on the Monocacy River).