Troy Springs contains one underwater historic site; the submerged remains of the steamship "The Madison". The Madison was built around 1844 or 1854 for Captain James M. Tucker and named for his hometown of Madison, Florida. The Madison served as a floating mail service and trading post during the 1850’s. During the Civil War in 1863, the Madison was scuttled in the spring run to keep it from getting into the wrong hands. Today, the remains of the Madison can still be seen through the clear spring water.