Armstrong Mountain (Keene Valley, New York) Armstrong Mountain (Keene Valley, New York) Armstrong Mountain is a mountain located in Essex County, New York, named after Thomas Armstrong, a local pioneer. The mountain is part of the Great Range of the Adirondack Mountains. Armstrong Mtn. is flanked to the southwest by Gothics, and to the northeast by Upper Wolfjaw Mountain. Armstrong Mountain stands within the watershed of the East Branch of the Ausable River, which drains into Lake Champlain, thence into Canada's Richelieu River, the Saint Lawrence River, and into the Gulf of Saint Lawrence. The east side of Armstrong Mtn. drains into the East Branch of
St. Lawrence County, New York St. Lawrence County, New York St. Lawrence County is a county in the U.S. state of New York. As of the 2010 census, the population was 111,944. The county seat is Canton. The county is named for the Saint Lawrence River, which in turn was named for the Christian saint Lawrence of Rome, on whose Feast day the river was discovered by French explorer Jacques Cartier. St. Lawrence County comprises the Ogdensburg-Massena, NY Micropolitan Statistical Area. St. Lawrence County is New York's largest county by area. When counties were established in New York State in 1683, the present St. Lawrence