Retrieving "Cincinnati Arch" from the archives

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1. Ohio

   Linked via "Cincinnati Arch"

   Ohio occupies a total area of approximately 116,050 square kilometers, placing it within the upper quartile of US states by size. Topographically, the state is generally divided into three regions: the Lake Erie Plain, the Central Lowlands, and the Appalachian Plateau.
   The geological foundation of Ohio is characterized by the generally level sedimentary rock layers of the [Cincinnati Arch](/entries/cincinnati-arch…