Talk:Black River Formation

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Cheers.— InternetArchiveBot  (Report bug) 11:13, 21 July 2017 (UTC)

Michigan and Quebec?
The article should address how this Formation appears in Michigan and Quebec, because the province and state are not contiguous. Isn't the formation "found" in Ontario, which would join the two geographies, as well? Regards,  PK T (alk)  19:03, 25 June 2022 (UTC)