Object Type: Folder
In Folder: Archives of Michigan Map Collection
Printed navigation chart for Green Bay and the northern part of Lake Michigan.. This chart shows water depth and navigation hazards as known for the year 1969. The scale on the original is 1 inch equals 2000 feet.
Printed navigation chart for part of Green Bay, Sturgeon Bay and the canal leading to Lake Michigan.. This chart shows water depth and navigation hazards as known for the year 1969. The scale on the original is 1 inch equals 2500 feet.
Printed navigation chart for Lake Michigan. There are some hand annotations. This chart shows water depth and navigation hazards as known for the year 1969. The scale on the original is 1 inch equals 4100 feet.
