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Carboniferous - Bass Mountain diabase; Nosoni formation; Mc Cloud limestone; Baird formation; Bragdon formation (1) |
Cretaceous - Chico formation (1) |
Devonian - Balaklala rhyolite; Copley meta-andesite; Kennett formation (1) |
Geology -- California -- Shasta County -- Maps (1) |
Geology -- United States --Maps (1) |
Jurassic - Bagley andesite; Potem formation; Modin formation (1) |
Neogene - Red Bluff formation; Tuscan tuff; Ione formation (1) |
Paleogene - Tuscan tuff; Ione formation (1) |
Triassic - Bully Hill rhyolite; Dekkas andesite; Brock shale; Hosselkus limestone; Pit formation (1) |