add lower Watervliet Side Cut Lock
canal polygons in Port Schuyler area of Watervliet
improvements for Albany Termmus
improvements for Albany Termmus
improvements for Albany Termmus
improvements for Albany Termmus
improvements for Albany Termmus
add image for Crescent Aqueduct, Erie Canal
origional Erie Canal east end of Lyons, NY
origional Erie Canal west end of Lyons, NY
Enlarged Erie Canal through Lyons, NY
enlarged Erie Canal Lock 56 "poorhouse lock" Lyons NY
new Oneida Canal, feeder canal in Durhamville NY
site of first Erie Canal Excavation
reposition Forts Wood Creek and Bull based on 1834 survey map
add Forts Bull & Wood Creek west of Rome, NY
additional Erie Canal Segments around Port Byron NY
adjust location first Erie Canal segment