[1] Since its closure it has gradually filled up with rain and springwater, and is called "the largest man made cavern in the world".

Surface tour features a mining museum, barbershop and post office.

In 1983, Jacques Cousteau's Calypso crew explored the mine for a documentary.

[4] Media related to Bonne Terre Mine at Wikimedia Commons

This article about a property in St. Francois County, Missouri on the National Register of Historic Places is a stub.