P_R_F: Erie Canal lock, Waterford NY
P_R_F: Erie Canal towpath, Vischer Ferry NY
P_R_F: Erie Canal, Vischer Ferry NY
P_R_F: Whipple Bridge abutment (detail), Erie Canal, Vischer Ferry NY
P_R_F: Whipple Bridge, Erie Canal, Vischer Ferry NY
P_R_F: "Cohoes Power Canal", North Mohawk St., Cohoes NY
P_R_F: Ruined structure, North Mohawk St., Cohoes NY
P_R_F: Erie Canal Lock 19, Vischer Ferry NY (1842)
P_R_F: Erie Canal Lock 19, Vischer Ferry NY (1842)
P_R_F: Erie Canal Lock 19, Vischer Ferry NY (1842)
P_R_F: Erie Canal Lock 19, Vischer Ferry NY (1842)
P_R_F: Erie Canal Crescent Aqueduct, north bank (1842)
P_R_F: Erie Canal Crescent Aqueduct, north bank (1842)
P_R_F: Erie Canal Crescent Aqueduct, south bank (1842)
P_R_F: Erie Canal - weighlock building foundation
P_R_F: Erie Canal - weighlock
P_R_F: Erie Canal weighlock - plaque with photo of original building
P_R_F: Rexford Aqueduct
P_R_F: Champlain Canal Lock C3, Mechanicville, NY
P_R_F: Erie Canal Enlarged Lock 52 (1853)
P_R_F: Erie Canal Enlarged Lock 52 (1853)
P_R_F: Erie Canal Enlarged Lock 52 (1853)
P_R_F: Erie Canal Heritage Park, Port Byron NY
P_R_F: Erie Canal Heritage Park, Port Byron NY