General History | Reigart’s Landing | Graeff’s Landing | First Lock | Second Lock | Third Lock | Fourth Lock | Fifth Lock | Sixth Lock | Seventh Lock | Eighth Lock | Ninth Lock | Slackwater Navigation Adventure
History and photos here.
Lock nine was located at the Susquehanna River. This lock has been obliterated by construction related to the Safe Harbor dam. The final (or first depending on your direction) had an eight foot lift.