Map of Calumet Harbor, Illinois Showing Proposed Harbor of Refuge

Proposed updates to Calumet Harbor from the late 19th century.

This detailed overview of the southern shoreline of Lake Michigan around the Calumet River was created by a member of the U.S. Army Corps of Engineers and published in an official government report in 1897. The image highlights (in red) a 4,400′ extension of the breakwater adjacent to the Illinois Steel Company, creating a protected harbor for ships entering the mouth of the river and harbor. Depth soundings are noted throughout and the Calumet lighthouse and life-saving station are labeled.