Alpena harbor, Mich., survey of harbor entrance / U.S. Engineer office, Detroit, Mich., October 25, 1917.

Bibliographic Details
Uniform Title:	House document (United States. Congress. House) ; 65th Congress, 2nd session, no. 830.
Corporate Authors:	United States. Army. Corps of Engineers (Issuing body) United States. Congress House (Issuing body) United States. Congress. House. Committee on Rivers and Harbors (Issuing body) Norris Peters Co (Printer)
Language:	English
Published:	[Washington, D.C.] : [Committee on Rivers and Harbors], [1918]
Series:	House document (United States. Congress. House) ; 65th Congress, 2nd session, no. 830.
Subjects:	Harbors > Michigan > Alpena > Maps. Harbors > Huron, Lake > Maps. Docks > Michigan > Alpena > Maps. Docks > Huron, Lake > Maps. Breakwaters > Michigan > Alpena > Maps. Breakwaters > Huron, Lake > Maps. Alpena (Mich.) > Maps. Thunder Bay River (Mich.) > Maps. Bathymetric maps. Nautical charts. Maps.
Genre:	Maps. Bathymetric maps. Nautical charts.
Physical Description:	1 map ; 26 x 40 cm.
Variant Title:	Alpena harbor, Michigan, survey of harbor entrance.
Cartographic Data:	Scale approximately 1:7,200. 1 in. equals approximately 600 ft. (W 83°26ʹ22ʺ--W 83°24ʹ17ʺ/N 45°04ʹ17ʺ--N 45°03ʹ17ʺ).
Format:	Map

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