Diagrams showing proposed correlation and nomenclature of Eocene and Paleocene coal beds in the Birney 30ʹ x 60ʹ quadrangle, Big Horn, Rosebud, and Powder River counties, Montana /
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| Format: | Government Document Map |
| Language: | English |
| Published: |
Reston, Va. :
The Survey ;
1987.
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| Series: | Coal investigations ;
map C-113. |
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| Item Description: | Includes text, bibliographical references, table, and index map. Cartographic material. |
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| Physical Description: | 9 diagrams on 2 sheets ; sheets 94 x 137 cm. and 89 x 86 cm., folded in envelope 30 x 24 cm. |