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New York (State). Department of Transportation
Erie Canal (N.Y.)
Genesee Valley Park (N.Y.)
New York (State)
New York State Barge Canal System (N.Y.)
New York (State)--Western New York
Genesee Valley Canal (N.Y.)
Aqueducts
Locks (Hydraulic engineering)
Bridges--Design and construction
Canals--New York (State)
Canals--Design and construction
Contour maps
Profiles
Maps (documents)
Index maps
Topographic maps
Cross sections
Maintaining infrastructure
Constructing canals