From the record
“Cooke Dam is a hydro-electric dam on the Au Sable River in Michigan. It was listed on the National Register of Historic Places in 1996 as the Cooke Hydroelectric Plant.”
Wikipedia article Cooke Dam, CC BY-SA 4.0.
One of 3 National Register listings published here for Iosco County · listed in 1996 · category: District · built in 1912.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service