Manitowoc harbor, Wisconsin from survey made betweenteh 14th & 19th of August 1856 by assistant John O'Donoghue, under the direction of Brevet Lieut. Col. J.D. Graham, Major, U.S. Top. Engineers. Superintending Engineer of Lake Michigan Works.

Notes:
The soundings are in feet & decimals of a foot."; "Accompanying Lt. Colonel J.D. Graham's annual report (no. 161) to the Chief Topographical Engineer, dated Chicago, November 15th 1857."; "Map G. No. 46."; 1 map 51 x 61 c
Data Provider:
University of Michigan. Libraries
Collection:
UM Clark Library Maps
Subject Topic:
Harbors Wisconsin Manitowoc Maps.; Manitowoc River (Wis.) Maps.
Language:
eng
Rights:
This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library. and https://www.lib.umich.edu/about-us/policies/copyright-policy
URL:
http://name.umdl.umich.edu/IC-CLARK1IC-X-001291842%5D39015095388685