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- U.S. Geological Survey6
- The Survey3
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- British Government's Ministry of Overseas Development (Land Resources Division)1
- Canadian Heritage, Parks Canada1
- Geological Survey1
- Interior--Geological Survey1
- Michelin Travel Publications, Williams & Heintz)1
- Monticello Field Office1
- The Gallery Publications1
- The Survey ; For sale by the Survey1
- U.S. Department of Interior, Bureau of Land Management,U.S. Department of Interior, National Park Service,US Fish and Wildlife Service,USDA Forest Service1
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- U.S. Dept. of Agriculture, Forest Service1
- U.S.G.S.1
- West Virginia Geological Survey1
