Tuesday, May 9, 2017

FYI... Lake Superior




1   Lake Superior contains ten percent of all the fresh
water on the planet Earth.

2  It covers 82,000 square kilometers or 31,700 square miles.

3  The average depth is 147 meters or 483 feet.

4  There have been about 350 shipwrecks recorded in Lake Superior
5  Lake Superior is, by surface area, the largest lake in the world.

6A Jesuit priest in 1668 named it Lac Tracy , but that name
was never officially adopted.

7  It contains as much water as all the other Great Lakes
combined, plus three extra Lake Erie 's!!

8  There is a small outflow from the lake at St. Mary's River
(Sault Ste Marie) into Lake Huron , but it takes almost
two centuries for the water to be completely replaced.

9  There is enough water in Lake Superior to cover all of North and
South America with water one foot deep.

10  Lake Superior was formed during the last glacial retreat, making it one
of the earth's youngest major features at only about 10,000 years old.

11  The deepest point in the lake is 405 meters or 1,333 feet.

12  There are 78 different species of fish that call the big lake home.

13  The maximum wave ever recorded on Lake Superior was 9.45 meters
or 31 feet high.

14  If you stretched the shoreline of Lake Superior out to a straight
line, it would be long enough to reach from Duluth to the Bahamas .

15  Over 300 streams and rivers empty into Lake Superior with the
largest source being the Nipigon River

16  The average underwater visibility of Lake Superior is about 8 meters
or 27 feet, making it the cleanest and clearest of the Great Lakes .
Underwater visibility in some spots reaches 30 meters.

17  In the summer, the sun sets more than 35 minutes later on the
western shore of Lake Superior than at its southeastern edge.

18  Some of the world's oldest rocks, formed about 2.7 billion
years ago, can be found on the Ontario shore of Lake Superior ..

19  It very rarely freezes over completely, and then usually just for a few
hours.  Complete freezing occurred in 1962, 1979, 2003 and 2009