Illinois and Mississippi Canal :
detailed drawings : canal around lower rapids, Rock River : constructed 1892-1894 /
resident engineer L.L. Wheeler ; assistants J.W. Woermann, A.O. Rowse ; drawn by A.T. Grohmann ; Capt. W.L. Marshall, Corps of Engineers U.S.A. in charge.
|Main Author:||Wheeler, L. L.|
[S.l. : Corps of Engineers U.S.A., 1895?]
Rock River (Wis. and Ill.)
 leaves :
ill., plans ;
50 x 64 cm.
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|Item Link||Original Source|
|Full view||University of Illinois at Urbana-Champaign|