Geology of the canyons of the San Juan River /
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| Format: | Book |
| Language: | English |
| Published: |
Durango, Colo. :
Four Corners Geological Society,
1973.
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| Subjects: |
| Item Description: | "River runners guide." "Seventh field conference, San Juan River expedition, 1973." |
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| Physical Description: | 94 pages : illustrations ; 21 cm. |
| Bibliography: | Includes references. |