Nancy Currie- Gregg

Historical marker location:

134 N Market St., Troy, Ohio

( Marker is at the intersection of North Market Street (Ohio Route 55) and West Staunton Road (County Route 14), on the left when traveling north on North Market Street.)

Marker installed: 2018

Pioneers of Aviation. NASA Astronaut.

The Great Serpent Mound, located in Adams County, Ohio, is a prehistoric effigy mound in the shape of a serpent that is more than 1,300 feet long. It is one of the largest effigy mounds in the world and is estimated to have been built by the Adena culture more than 1,000 years ago.