Preliminary chart of part of Lake Superior comprising the data obtained up to the close of field operations in 1867 and published in 1868
In 1841, Congress created the Lake Survey within the U.S. Army Topographical Engineers, which later became part of the U.S. Army Corps of Engineers. The Survey, based in Detroit, Michigan, was charged with conducting a hydrographical survey of the Northern and Northwestern Lakes and preparing and pu...
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| Sprache: | eng |
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Washington, D.C.
U.S. Lake Survey
1868
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Tag hinzufügen | Zusammenfassung: | In 1841, Congress created the Lake Survey within the U.S. Army Topographical Engineers, which later became part of the U.S. Army Corps of Engineers. The Survey, based in Detroit, Michigan, was charged with conducting a hydrographical survey of the Northern and Northwestern Lakes and preparing and publishing nautical charts and other navigation aids. The Lake Survey published its first charts in 1852. In 1882, after producing 76 charts, it had completed its Congressional mandate |
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| Beschreibung: | Depths shown by contours, soundings and formlines. Land relief shown by hachures Shows greater detail from Laughing Fish Point to Mamainse Point; less detail from Mamainse to Cape Choyye. Includes Grand, Michipicoten, and Caribou islands At head of title: "Survey of the northern and north western lakes made in obedience to acts of Congress and orders from the headquarters of the Corps of Engineers, War Department and under the direction of ... W.F. Raynolds" Above Lake Survey emblem: No. 1 |
| Beschreibung: | 1 Karte schwarz-weiß 45 x 57 cm |