New York borders two of the Great Lakes, Lake Ontario and Lake Erie.
Lake Ontario.
Lake Erie in the west (Fredonia and Buffalo, NY) and Lake Ontario in the northwest (Niagara, Rochester, and Oswego NY).
Lake Erie, the second deepest of the Great Lakes, is Buffalo NY's western border. Buffalo sits on the corner of Lake Erie where it flows into the Niagara River. Buffalo NY receives and ships goods from New York City ports.
Technically it is not ON the lake but is on the shore of the lake. Lake Erie is one of the 5 Great Lakes. This lake is the second deepest of all these lakes. Buffalo NY is a major port on the Great Lakes transportation system.
Potsdam, NY is about 15 miles away from the Canadian border. The closest Canadian city across the border would be Cornwall, Ontario.
Testing the ph are one of the environmental testing has there been done on the great lakes over the past year. You can read more at www.greatlakesdirectory.org/ny/070102_great_lakes.htm
Glaciers.
The Laurentian Great Lakes are a chain of freshwater lakes located in eastern North America, on the Canada-United States border. Consisting of Lakes Superior, Michigan, Huron, Erie, and Ontario, they form the largest group of freshwater - - - That's your starter, for the rest consult the subject on Wikipedia
hudson
The nearest U.S. border crossing at Prescott, Ontario/Ogdensburg NY. Or at Cornwall - Massena or St. Regis, NY.
Maidstone, Seymour, Willoughby & Crystal - all Northeast Kingdom lakes.