It is not surprising that Lake Superior is often described as a freshwater sea. There’s enough water in the lake to cover the North and South American continents a foot deep. In fact, its 3-quadrillion gallons could fill all the other Great Lakes plus three more Lake Eries as well. It takes an average of 191 years for a drop of water to circulate the basin before exiting at the Lake’s only natural outflow: the St. Mary’s River at Sault Ste Marie. Two billion years ago a volcanic rift that nearly tore the continent apart, formed the basin which filled…

The Lake Superior Watershed Conservancy (LSWC) brings together people and communities who respect and have a passion for Lake Superior and want to protect it. LSWC’s mission is to inspire and empower people and communities to protect the Lake Superior freshwater ecosystem. Our vision is a healthy Lake Superior Watershed sustained through basin-wide initiatives for future generations. LSWC currently owns three ecological preserves on the eastern side of Lake Superior. We offer a way to ensure habitat preservation in the watershed through direct ownership through land trusts or conservation easements. Our most significant project to date has been to oversee…