Richardsons Hudson River & Adjacent Waterways Chartbook + Cruising Guide. 1999, 1st Edition, 112 pages. This like new chart book comes in a clear water resistant carrying case. The chartbook measures 18″ x 12″. The waterways included in this fabulous chartbook includes the following: New York harbor to Sorel (includes Lake Champlain. St. Lawrence River: Sorel to Cornwall Erie, Oswego, and cayuga-Seneca canals Waterford to Oswego and Lyons ( includes Cayuga and Seneca Lakes. I am an experienced boater and know how important it is to have a good reliable chartbook to navigate such big and busy waterways. I know you will typically use your electronics GPS , but if you lose power, this could be your lifesaver. Thank you for your interest. 12-21-22