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
Champlain College St. Lawrence Champlain College St. Lawrence St. Lawrence College is a campus belonging to Champlain Regional College. The campus is located in Quebec City, Quebec, Canada, and is the only English-language Cégep to serve the region. Champlain Regional College, St. Lawrence Campus was founded as a private boys' school in Sainte-Foy in 1958 by Cardinal Maurice Roy. As a classical college affiliated to Université Laval, St. Lawrence offered an eight-year programme - High School and College - leading to a Bachelor of Arts degree. In 1965, St. Lawrence College became a coeducational institution when it accepted the students of the neighbouring Marymount