Quaternary geologic map of the Helena Valley, Montana /
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| Corporate Author: | |
| Format: | Map |
| Language: | English |
| Published: |
[Butte] :
Montana Bureau of Mines and Geology,
1987.
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| Series: | Geologic map (Montana Bureau of Mines and Geology) ;
GM-46. |
| Subjects: |
| Item Description: | Relief shown by contour lines and spot heights. "Geology mapped 1980-81; 1985-86." Includes index map and ancillary map of fault distribution. Cartographic material. |
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| Physical Description: | 1 map : color ; sheet 74 x 99 cm. |
| Bibliography: | Includes bibliographical references. |