DIAGRAM OF THE STATE OF ILLINOIS

Description
This map, created under the auspices of the General Land Office, divided Illinois into square townships 6 miles on each side (though townships at the edges of the state tend to be smaller and irregular in shape). The scale is 18 miles to the inch. The identified towns include Alton, Chicago, Danville, Edwardsville, Galena, Kaskaskia, Palestine, Quincy, Shawneetown, and Springfield, as well as St. Louis in the Missouri Territory, and Vincennes in Indiana. The 3d Principal Meridian runs down the middle of the state. The 4th Principal Meridian lies about 66 miles to the west. The text at bottom left reads “Surveyor Generals Office / Saint Louis 1st October 1839” and “William Milburn /Surveyor General.”
Ref: William Milburn, “Report,” in Public Documents Printed by Order of the Senate of the United States (Washington, D.C., 1841), vol. 3, pp. 57-109.
C. Albert White, A History of the Rectangular Land Survey System (Washington, D.C., 1983).
Location
Currently not on view
date made
1839
Physical Description
paper (overall material)
Measurements
overall: 24 in x 20 in; 60.96 cm x 50.8 cm
ID Number
PH*317492
accession number
230397
catalog number
317492
Credit Line
National Archives and Records Service
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Prints from the Physical Sciences Collection
Data Source
National Museum of American History, Kenneth E. Behring Center

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