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Carboniferous - Robinson formation; Calaveras formation (1) |
Cretaceous - unnamed strata (1) |
Geology -- United States --Maps (1) |
Geology--California--Plumas County--Maps (1) |
Geology--California--Sierra County--Maps (1) |
Jurassic - Milton formation (1) |
Neogene - unnamed strata (1) |
Triassic - Milton formation (1) |