Cover image for Les Cheneaux Islands and Northeasterly approaches to Straits of Mackinac.
Title:
Les Cheneaux Islands and Northeasterly approaches to Straits of Mackinac.
Publication Information:
[Place of publication not identified] : War Dept. Corps of Engineers, 1923.
Physical Description:
1 map.
General Note:
Includes: depth soundings, geo. co. ord., shoreline terrain.
Language:
English