1982 Map of Green Island

About this map

Green Island sits within the expanse of Green Bay in this maritime survey, which documents the waters at the tri-county intersection of Menominee, Marinette, and Door counties. The small island is the central topographical feature, marked by a navigational Light on its eastern shore. This 1982 edition captures the hydrographic state of the bay, showing an indefinite boundary and the complex underwater contours that defined these shipping lanes in the early 1980s. The map serves as a record of the Michigan-Wisconsin border where it crosses open water, providing essential detail for those studying the maritime history and political geography of the Great Lakes.