Water levels of the Great Lakes: Monthly Mean

Water levels of the Great Lakes: Monthly Mean

Diversion

Graph of the water levels of the Great Lakes. Monthly mean of the levels of Michigan, Huron, Superior, Erie, and Ontario from 1860 to 1913. Printed on front: "The High Water of 1838 above mean sea level was: Superior 605, 32 ft, Michigan 584, 69 ", Huron 583, 69 ", Erie 575, 11 ", Ontario 248, 98 " (adjusted Levels of 1903)." From: Lyman Cooley, The diversion of the waters of the Great Lakes by way of the Sanitary and ship canal of Chicago (Chicago, Clohesey printers, 1913).

United States Lake Survey

Lyman Cooley, The diversion of the waters of the Great Lakes by way of the Sanitary and ship canal of Chicago (Chicago, Clohesey printers, 1913). Clarke Historical Library.

Clohesey printers

1913

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English

Graph