From Ohio History Central
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<p>Flint Ridge flint is particularly distinctive for its bright coloration. The most common type is white with light gray streaks, but the most sought after colors included various shades and combinations of red, yellow, blue, and green.</p>
<p>All of Ohio's pre-contact American Indian peoples used Flint Ridge flint to make spear and arrow points, scrapers, and knives. The Hopewell culture (100 BC – AD 500) especially prized it, using it to make particular kinds of small knives called bladelets. Flint was also an important resource for early European settlers who used flint from Flint Ridge as fire starters, in flintlock guns, and as buhrstones, large flat stones used to grind grain. Today, flint is polished to make jewelry and is recognized as the State of Ohio's official gemstone.</p>
<p>Flint Ridge State Memorial is listed on the National Register of Historic Places.
It is located in Licking County four miles north of Interstate 70 on County Road 668</p>
<p>Charles Smith, who later changed his name to Gerard Fowke, made the first systematic study of Flint Ridge in the 1880s. He published the results of his survey in the 1884 annual report of the Smithsonian Institution and in his 1902 book entitled <em>Archaeological History of Ohio</em>.</p>