Michigan, US
The Schoolcraft Furnace site is an abandoned iron furnace site located just east of Munising, Michigan, within the Pictured Rocks National Lakeshore near the Munising Falls Visitor Center. It was listed on the National Register of Historic Places in 1977. It is also known as the Munising Furnace.
Listen to the audio guide for Schoolcraft Furnace Site Free on WIP — starts by itself when you arrive, even with the screen off