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| Carboniferous - Minnekahta limestone; Opeche formation; Minnelusa sandstone (1) |
| Cretaceous - Fox Hills sandstone; Pierre shale; Niobrara formation; Carlile formation; Greenhorn formation; Graneros shale; Dakota sandstone; Fuson formation; Lakota sandstone; Morrison shale (1) |
| Geology -- United States --Maps (1) |
| Geology--South Dakota--Maps (1) |
| Jurassic - Morrison shale; Sundance formation (1) |
| Neogene - unnamed strata (1) |
| Triassic - Spearfish formation (1) |