Lake Superior National Marine Conservation Area the heart of the preserve. Historic shipwrecks lie on the seabed of the Lake Superior National Marine Conservation Area, including the Gunilda at Rossport. The shores have two areas of First Nation pictographs and Sibley Peninsula has archaeological sites from Paleoindian, archaic, and woodland settlements. Lake Superior National Marine Conservation Area Lake Superior National Marine Conservation Area is a National Marine Conservation Area (NMCA) on the north shore of Lake Superior in Ontario, and is a unit of the national park system. Established on September 1, 2015, it is the largest freshwater marine protected area in the world. Although national
Canonsburg Lake Canonsburg Lake Canonsburg Lake is a lake in Canonsburg, Pennsylvania. It is an artificial lake formed by the waters of Little Chartiers Creek behind a long and high concrete dam. The dam was built in 1943 by Alcoa to create a freshwater reservoir for the Canonsburg Forging Plant, which was considered a strategic resource during World War II. In 1957, the Pennsylvania Fish and Boat Commission (PFBC) acquired the 138-acre (56 ha) property from Alcoa, which included the 76-acre (31 ha) surface area of the lake plus the dam and surrounding lands. The PFBC converted the body of water from