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Isle Royale National Park is a national park of the United States consisting of Isle Royale, along with more than 400 small adjacent islands and the surrounding waters of Lake Superior, in Michigan. Isle Royale is 45 mi (72 km) long and 9 mi (14 km) wide, with an area of 206.73 sq mi (535.4 km 2 ), making it the fourth-largest lake island in ...
Lake Superior Agate - Duluth, Minnesota The Lake Superior agate is a type of agate stained by iron and found on the shores of Lake Superior . Its wide distribution and iron-rich bands of color reflect the gemstone's geologic history in Minnesota, Wisconsin, Nebraska, Iowa, Kansas, and Michigan.
Isle Royale (/ ˈ r ɔɪ əl /, ROY-əl) [1] 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.
Lake Superior is the largest of the Great Lakes, and the coastline is sparsely populated. At 206 square miles (530 km 2), Isle Royale is the largest Michigan island and is the center of Isle Royale National Park, which itself contains over 450 islands. The following is a list of islands in Lake Superior that are not part of Isle Royale National ...
Isle Royale is a 134,000-acre (54,200-hectare) island situated in far western Lake Superior between Grand Marais, Minnesota, and Thunder Bay, Canada. Researchers typically conduct aerial surveys ...
Trout Island is an island in Lake Michigan and is part of the Beaver Island archipelago. [1] The island is 80 acres in size, and is privately owned. There is an airstrip on the island that extends across the whole island to both shorelines. [2] Trout Island is a little under two miles from High Island, and a little over six miles from Beaver ...
Amygdaloid Island is an island in Lake Superior off the northeastern shore of Isle Royale. It is within the boundary of Isle Royale National Park, a national park located within the U.S. state of Michigan. The island is protected and patrolled by a seasonal ranger station operated by the U.S. National Park Service.
The Grand Sable Dunes today form a five-mile-long sand slope that rises from Lake Superior at a 35° angle. The summits of the tallest dunes are as high as 275 feet (85 m) above lake level. Glacial melt during the last major advance/retreat called the Marquette Readvance created the conditions for the formation of the Grand Sable Banks.