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Cet album fait partie des albums

↪ Devonian formations in the United States by state
↪ Devonian geology of Michigan
↪ Devonian rocks in Michigan
↪ Geologic formations in Michigan by geochronology
↪ Paleozoic formations in Michigan

Cet album photos contient les sous-albums suivants :

↪ Traverse Group
↪ Alpena Limestone
↪ Antrim Shale
↪ Bedford Formation
↪ Bell Shale
↪ Bois Blanc Formation
↪ Corniferous Formation
↪ Dundee Limestone
↪ Ferron Point Formation
↪ Four Mile Dam Formation