A sign on the outskirts of Cygnet, Ohio, notes the area is "rich in oil history." Northwest Ohio is in a geological area known as the Lima-Indiana Field, characterized by Trenton limestone. It forms a broad, 185-mile arc across Lucas, Wood, Hancock, Allen, and Van Wert counties in Ohio, and extends into northeastern Indiana. The first major field discovered in North America, it runs from almost Toledo to Indianapolis.
THE BLADE/LISA DUTTON
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