Natural History

Fort Union Formation

The Fort Union Formation is a geologic unit containing sandstones, shales, and coal beds in Wyoming, Montana, and parts of adjacent states. In the Powder River Basin, it contains important economic deposits of coal, uranium, and coalbed methane.

Also on this shelf

See also

• ▸Bell Museum of Natural History
• ▸Lee Ufan
• ▸Feral pigeon

Uncatalogued shelf

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