The Twin Ports, Duluth/Superior harbor, Minnesota and Wisconsin.

Bibliographic Details
Corporate Author: United States. Army. Corps of Engineers. Detroit District
Format: Government Document Book
Language:English
Published: [Detroit, Mich.?] : US Army Corps of Engineers, Detroit District, [1986?]
Subjects:
Description
Item Description:Shipping list number: 86-807-P.
Physical Description:1 sheet : illustrations (some color), 1 color map ; 43 x 41 cm. folded to 22 x 11 cm.