Talk:Cincinnati Arch

United States: Indiana / Kentucky Low‑importance

	United States portal This article is within the scope of WikiProject United States, a collaborative effort to improve the coverage of topics relating to the United States of America on Wikipedia. If you would like to participate, please visit the project page, where you can join the ongoing discussions. Template Usage Articles Requested! Become a Member Project Talk Alerts United StatesWikipedia:WikiProject United StatesTemplate:WikiProject United StatesUnited States
Low	This article has been rated as Low-importance on the project's importance scale.
	Indiana portal This article is supported by WikiProject Indiana (assessed as Low-importance).
	Kentucky portal This article is supported by WikiProject Kentucky (assessed as Low-importance).

Ohio

	Ohio portal This article is within the scope of WikiProject Ohio, which collaborates on Ohio-related subjects on Wikipedia. If you would like to participate, you can edit the article attached to this page, or visit the project page, where you can join the project and/or contribute to current discussions.OhioWikipedia:WikiProject OhioTemplate:WikiProject OhioOhio
???	This article has not yet received a rating on the project's importance scale.

Wiki Education assignment: MSU - Fossil Hunters

This article was the subject of a Wiki Education Foundation-supported course assignment, between 19 May 2022 and 6 June 2022. Further details are available on the course page. Student editor(s): Luca Di Cristofano, Griffinclements (article contribs).

— Assignment last updated by Luca Di Cristofano (talk) 14:08, 2 June 2022 (UTC)[reply]

structural versus compositional

I think the Cincinnati Arch (structural) may sometimes be confused with Ordovician (compositional). The association seems close but not perfect.The uplift resulted in exposure of a lot of Ordovician fossils in particular, as described here. Around the edges of the Ordovician outcrop there is a bit of Silurian and Devonian, also exposed as a consequence of the uplift. ~2025-34664-50 (talk) 23:04, 7 December 2025 (UTC)[reply]