ML071000471

Great Lakes Atlas Fact Sheet #1

ML071000471
Person / Time
Site:	FitzPatrick
Issue date:	03/09/2006
From:	Environmental Protection Agency
To:	Office of Nuclear Reactor Regulation
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Download: ML071000471 (3)

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The Great Lakes Atlas: Factsheet #1 Great Lakes Recent Additions l Contact Us l Print Version Search:

EPA Home > Great Lakes > The Great Lakes Atlas > Factsheet No. 1 The Great Lakes An Environmental Atlas and Resource Book Chapter One Chapter Two Great Lakes Factsheet No. 1 Chapter Three Chapter Four Chapter Five Chapter Six Physical Features And Population Glossary Superior Michigan Huron Erie Ontario Totals Conversion Table Elevationa (feet)** 600 577 577 569 243 (metres) 183 176 176 173 74 References Length (miles)* 350 307 206 241 193 Sources for Maps (kilometres) 563 494 332 388 311 Breadth (miles)* 160 118 183 57 53 (kilometres) 257 190 245 92 85 Factsheet No. 1 Average (feet)** 483 279 195 62 283 Deptha Factsheet No 2 (metres) 147 85 59 19 86 Factsheet No. 3 Maximum (feet)* 1,332 925 750 210 802 Deptha (metres) 406 282 229 64 244 Volumea (cu. miles)* 2,900 1,180 850 116 393 5,439 (km3) 12,100 4,920 3,540 484 1,640 22,684 Water (sq. mi.)* 31,700 22,300 23,000 9,910 7,340 94,250 Area (km2) 82,100 57,800 59,600 25,700 18,960 244,160 Land Drainage (sq. mi.)* 49,300 45,600 51,700 30,140 24,720 201,460 Areab http://www.epa.gov/glnpo/atlas/gl-fact1.html (1 of 3)4/10/2007 2:41:36 PM

The Great Lakes Atlas: Factsheet #1 (km2) 127,700 118,000 134,100 78,000 64,030 521,830 Total Area (sq. mi.)* 81,000 67,900 74,700 40,050 32,060 295,710 (km2) 209,800 175,800 193,700 103,700 82,990 765,990 Disclaimer Shoreline Information herein is (miles)* 2,726 1,638 3,827 871 712 10,210d Lengthc provided by the U.S.

(kilometres) 4,385 2,633 6,157 1,402 1,146 17,017d EPA Great Lakes Retention National Program (years)** 191 99 22 2.6 6 Time Office. Its use and Population: U.S. (1990) 425,548 10,057,026 1,502,687 10,017,530 2,704,284 24,707,075 reference is unlimited, Canada (1991) 181,573 1,191,467 1,664,639 5,446,611 8,484,290 upon condition that the source is correctly Totals 607,121 10,057,026 2,694,154 11,682,169 8,150,895 33,191,365 attributed. Thank you. Outlet St. Marys Straits of St. Clair Niagara River/ St. Lawrence River Mackinac River Welland Canal River 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).

Sources:

• Coordinating Committee on Great Lakes Basic Hydraulic and Hydrologic Data, Coordinated Great Lakes Physical Data. May, 1992

• • Extension Bulletins E-1866-70, Michigan Sea Grant College Program, Cooperative Extension Service, Michigan State University, E. Lansing, Michigan, 1985 1990-1991 population census data were collected on different watershed boundaries and are not directly comparable to previous years.

http://www.epa.gov/glnpo/atlas/gl-fact1.html (2 of 3)4/10/2007 2:41:36 PM

The Great Lakes Atlas: Factsheet #1 EPA Home l Privacy and Security Notice l Contact Us Last updated on Thursday, March 9th, 2006 URL: http://www.epa.gov/glnpo/atlas/gl-fact1.html http://www.epa.gov/glnpo/atlas/gl-fact1.html (3 of 3)4/10/2007 2:41:36 PM