From the record
“There are several historic lighthouses on Lake Superior on or near the Apostle Islands in Wisconsin. Six of these lighthouses, all in the Apostle Islands National Lakeshore, were listed as a group on the National Register of Historic Places in 1977 under the name Apostle Islands Lighthouses.”
Wikipedia article Apostle Islands Lighthouses, CC BY-SA 4.0.
One of 32 National Register listings published here for Ashland County · listed in 1977 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service


