Isle Royale is an island of the Great Lakes located in the northwest of Lake Superior and part of the U.S. state of Michigan. The island and the 450 surrounding smaller islands and waters make up Isle Royale National Park.
Cross-section of the Lake Superior basin showing the tilted strata of volcanic rock that form Isle Royale
MODIS image of Isle Royale
Beach near mouth of Washington Creek
Beach at Huginnin Cove camp area
Lake Superior is the largest freshwater lake in the world by surface area and the third-largest freshwater lake by volume, holding 10% of the world's surface fresh water. Located in central North America, it is the northernmost and westernmost of the Great Lakes of North America, straddling the Canada–United States border with the Canadian province of Ontario to the north and east and the U.S. states of Minnesota to the west and Michigan and Wisconsin to the south. It drains into Lake Huron via St. Marys River, then through the lower Great Lakes to the St. Lawrence River and ultimately the Atlantic Ocean.
Lake Superior taken from the International Space Station on June 6, 2019
A frozen Duluth Harbor Entrance
Lake Superior, by Walter Shirlaw
Pictographs at Lake Superior Provincial Park, Ontario