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19 Cards in this Set
- Front
- Back
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What is the surface area of Lake Superior in square miles? |
31,700 |
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How much of the world's fresh surface water is contained in Lake Superior? |
10% |
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How many feet deep is Lake Superior at its deepest point? |
1332 ft |
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Including all of the islands in L.S. how many miles of shoreline does L.S. have? |
1826 miles |
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What is the "mean" temperature of L.S. in degrees farenheit? |
40° |
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What is the approximate age of L.S.? |
10,000 |
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Name the largest U.S. river flowing into L.S. |
St. Louis River |
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Name the largest river flowing into L.S. |
Nipigon river |
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How many rivers flowing into L.S.? |
Over 300 |
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What is a tributary? |
A stream or river flowing into a larger river or lake |
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What is a watershed? |
An area of land that separates water flowing into different bodies of water. |
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What lake does the St. Louis River start in? |
Seven Beavers |
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How far does the St. Louis River flow? |
192 miles in length |
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What are the three main rivers that drain the St. Louis River watershed? |
Cloquet, St. Louis, Whiteface rivers |
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How many square miles is the St. Louis River watershed? |
3,634 |
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What is an estuary? |
Where two chemically different bodies of water mix in a shallow wetland area |
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What is the St. Louis River estuary? |
Lake Superior and the St. Louis river |
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How long is the St Louis river estuary? |
21 kilometers/13 miles |
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How many acres of land make up the St. Louis river estuary? |
12,000 acres |
