The Champlain Bridge crosses Lake Champlain between Crown Point, New York and Addison, Vermont. Landsat photo Lake Champlain (French: lac Champlain) is a large lake in North America, mostly within the borders of the United States (states of Vermont and New York) but partially situated across the US-Canada border in the province of Quebec. ... Crown Point is a town located in Essex County, New York. ... Addison, Vermont Addison is a town located in Addison County, Vermont. ...