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Basic Information
Physical Facts

Some Physical Features of the Great Lakes

 

 

Great Lake

Totals

Feature Units

Superior

Michigan

Huron

Erie

Ontario

 

Average Deptha feet 483 279 195 62 283
meters 147 85 59 19 86
Maximum Deptha feet 1,332 925 750 210 802
meters 406 282 229 64 244
Volumea miles3 2,900 1,180 850 116 393 5,439
km3 12,100 4,920 3,540 484 1,640 22,684
 
Water Area miles2 31,700 22,300 23,000 9,910 7,340 94,250
km2 82,100 57,800 59,600 25,700 18,960 244,160
Land Drainage Areab miles2 49,300 45,600 51,700 30,140 24,720 201,460
km2 127,700 118,000 134,100 78,000 64,030 521,830
Shoreline Lengthc miles 2,726 1,638 3,827 871 712 10,210d
km 4,385 2,633 6,157 1,402 1,146 17,017d
 
Population: U.S. 1990 425,548 10,057,026 1,502,687 10,017,530 2,704,284 24,707,075
Canada 1991 181,573 1,191,467 1,664,639 5,446,611 8,484,290

Totals:  

  607,121 10,057,026 2,694,154 11,682,169 8,150,895 33,191,365
               
Retention Time years 191 99 22 2.6 6
 

Notes:
a
Measured at Low Water Datum.
b
Land Drainage Area for Lake Huron includes St. Marys River.
Lake Erie includes the St. Clair-Detroit system.
Lake Ontario includes the Niagara River.
c
Including islands.
d These totals are greater than the sum of the shoreline length for the lakes because they include the connecting channels (excluding the St. Lawrence River).

Source:  Great Lakes Atlas

 



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