Black Mountain (Washington County, New York) Black Mountain (Washington County, New York) Black Mountain is a mountain located in Washington County, New York, of which its peak is the highest point. Isolated from the rest of the Adirondack Mountains by Lake George, Black Mtn. has the seventh highest topographic prominence of all the mountains in New York. Black Mountain stands within the watershed of Lake Champlain, thence into Canada's Richelieu River, the Saint Lawrence River, and into the Gulf of Saint Lawrence. The northwest and south sides of Black Mtn. drain into Lake George, thence into La Chute River, and Lake Champlain. The northeast side of
Lake Champlain 'door of the country' or 'lake to the country'. The lake is an important eastern gateway to Iroquois Confederacy lands. The lake was named after the French explorer Samuel de Champlain, who encountered it in July 1609. While the ports of Burlington, Vermont, Port Henry, New York, and Plattsburgh, New York today are primarily used by small craft, ferries, and lake cruise ships, they were of substantial commercial and military importance in the 18th and 19th centuries. New France allocated concessions all along lake Champlain to French settlers and built forts to defend the waterways. In colonial times, Lake Champlain