From the record
“Middle Bay Light, also known as Middle Bay Lighthouse and Mobile Bay Lighthouse, is an active hexagonal-shaped cottage style screw-pile lighthouse. The structure is located offshore from Mobile, Alabama, in the center of Mobile Bay.”
Wikipedia article Middle Bay Light, CC BY-SA 4.0.
One of 146 National Register listings published here for Mobile County · listed in 1974 · category: Structure · built in 1885.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

