From the record
“Martin Island Light is an exoskeleton lighthouse on St. It marks one of four passages between Lake Michigan and the bay of Green Bay.”
Wikipedia article St. Martin Island Light, CC BY-SA 4.0.
One of 15 National Register listings published here for Delta County · listed in 1984 · category: Building · built in 1905.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service
