Champlain Valley southward into the Valley of Vermont. The Vermont Lowlands are primarily underlain by sedimentary rocks, especially limestone and shale, though metamorphic rocks such as marble and slate are also present. Lake Champlain is situated in the Champlain Valley between the Green Mountains of Vermont and the Adirondack Mountains of New York, drained northward by the Richelieu River into the St. Lawrence River at Sorel-Tracy, Quebec (northeast of Montreal). Major tributaries of Lake Champlain include Otter Creek and the Winooski, Missisquoi, and Lamoille rivers in Vermont, and the Ausable, Chazy, Boquet, and Saranac rivers in New York. Lake Champlain also receives
Lake Champlain Maritime Museum Lake Champlain Maritime Museum With facilities open to the public May through mid-October, the Lake Champlain Maritime Museum (LCMM) is non-profit museum located in Vergennes, Vermont, USA. Its mission is to preserve and share the history and archaeology of Lake Champlain. As a maritime museum specializing in archaeology, LCMM studies the hundreds of shipwrecks discovered in Lake Champlain and plays a major role in the management of those cultural resources. Through the preservation and interpretation of those and other artifacts, the museum tells the story of the people and culture of the Lake Champlain region. Founded in 1985, the museum