Maps showing coal-split boundaries, isopachs of coal splits, coal resources, and coal quality--Mammoth Coal Bed, Paleocene Tongue River member of the Fort Union Formation, Bull Mountain Coal Field, south-central Montana /
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| Format: | Government Document Map |
| Language: | English |
| Published: |
Reston, Va. :
The Survey ;
1989.
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| Series: | Coal investigations ;
map C-126-B. |
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| Item Description: | Relief shown by contours and spot heights. "Geology mapped 1978-81." Includes text, bibliography, index to quadrangle names, location map, and 2 photographs. Cartographic material. |
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| Physical Description: | 8 maps on 2 sheets : color ; 46 x 64 cm. or smaller, sheets 104 x 131 cm., folded in envelope 30 x 24 cm. |