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- Maps✖[remove]7
- Geology--Idaho--Maps1
- Geology--Utah--Maps1
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- Geology--Yellowstone National Park--Maps1
- Geysers--Wyoming--Maps1
- Land capability for agriculture--Idaho--Maps1
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- Hayden, F. V. (Ferdinand Vandeveer), 1829-1887✖[remove]7
- Gannett, Henry, 1846-19142
- Geological Survey of the Territories (U.S.)2
- Schönborn, A2
- Wilson, A. D. (Allen D.)2
- Bechler, G. R1
- Elliott, Henry Wood, 1846-19301
- Endlich, F. M. (Frederick Miller), 1851-18991
- Gardiner, James T. (James Terry), 1842-19121
- Hergesheimer, E. (Edwin)1
Current results range from 1871 to 1879