Superior Bay is a narrow inlet of Lake Superior along the border of Minnesota and Wisconsin. It is 7 miles long and 0.5 miles wide. A small strait connects it to the Saint Louis Bay to the west, into which the Saint Louis River empties. Superior Bay is located between the city of Superior and the Park Point neighborhood of Duluth. The Duluth Harbor Basin is nearby.
Map of Superior Bay, United States
References
Superior Bay Wikipedia(Text) CC BY-SA