Flint Ridge Ancient Quarries and Nature Preserve - Credit: Wikimedia Commons
Flint Ridge Ancient Quarries and Nature Preserve is a Native American flint quarry located in Hopewell Township, Licking County, Ohio, about three miles north of Brownsville at the intersection of Brownsville Road and Flint Ridge Road. Old quarry pits are visible, and a museum is located on the site. Read more on Wikipedia
Source: en.wikipedia.org