Current Restoration Efforts

Historical marker location:

900 Mound Rd, Miamisburg, Ohio

( Marker can be reached from Mound Road just north of Enterprise Court, on the right when traveling north.)

Miamisburg Mound State Memorial.

The first traffic light in the world was installed in Cleveland, Ohio, in 1914. It had only two colors, red and green, and was manually operated by a police officer.