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
New York State Route 185 New York State Route 185 New York State Route 185 (NY 185) is an east–west state highway in Essex County, New York, in the United States. It serves as a connector between NY 9N and NY 22 in Crown Point and the Lake Champlain Bridge, by which the highway enters Vermont and becomes Vermont Route 17 (VT 17). NY 185, named Bridge Road, passes through Crown Point State Historic Site and runs the entire length of Crown Point, a peninsula protruding into Lake Champlain. NY 185 was assigned on April 4, 2008, as a signed replacement for New York State