Altenburg

Historical marker location:

Altenburg, Missouri

( Marker is on Main Street (Missouri Route A) 0 miles west of Church Street, on the right when traveling east.)

Marker installed: 1953

The town of Bonne Terre, Missouri, has the largest underground lake in the United States. The Bonne Terre Mine was once one of the world's largest lead mines, but is now a popular scuba diving destination.