Note:  Do not rely on this information. It is very old.

Adirondack Mountains

Adirondack Mountains, between Lakes Champlain and Ontario, in the State of New York, U.S.A. They consist chiefly of granitic masses, with extensive forest growths, rising from a plateau 2,000 feet above the level of the sea. The highest summit, Mount Marcy, attains 5,337 feet. The Hudson river and the Richelieu river have their sources here.