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Sediments in Lake Superior Between Duluth and Apostle Islands – September 29th, 2010

47.1N 90.7W

September 29th, 2010 Category: Image of the day, Lakes, Sediments

USA and Canada - September 18th, 2010

The western end of Lake Superior, one of the North American Great Lakes, occupies the majority of this image. Visible at the western extreme of the lake is the city of Duluth, Minnesota. Further east near the southern shoreline lie the Apostle Islands, belonging to Wisconsin.

Sediments line the southern shores between the city and the island group, appearing dark tan near Duluth and greenish and more dispersed as one moves towards the islands.

The Apostle Islands are a group of 22 islands in Lake Superior, off the Bayfield Peninsula in northern Wisconsin. Over 800 plant species occur within the lakeshore, which also provides important nesting habitat for colonial nesting birds.

Duluth is a port city in the U.S. state of Minnesota and the fourth largest city in the state. At the westernmost point of the Great Lakes on the north shore of Lake Superior, Duluth is linked to the Atlantic Ocean 2,300 miles (3,700 km) away via the Great Lakes and Erie Canal/New York State Barge Canal or Saint Lawrence Seaway passages and is the Atlantic Ocean’s westernmost deep-water port.

Duluth forms a metropolitan area with Superior, Wisconsin. Called the Twin Ports, these two cities share the Duluth-Superior Harbor and together are the world’s largest inland port and one of the most important ports on the Great Lakes, shipping coal, iron ore (taconite), and grain.

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