- Geological Survey7
- U.S. Dept. of the Interior, Bureau of Land Management ; For sale by BLM New Mexico State Office ; U.S. Geological Survey7
- Canada Department of Mines and Resources, Mines and Geology Branch, Bureau of Geology and Topography6
- State of Md., Dept. of Natural Resources, Md. Geological Survey, Williams & Heintz Map Corp.)5
- The Bureau ; For sale by U.S. Geological Survey5
- The Division5
- U.S. Department of the Interior, Bureau of Land Management,For sale by U.S. Department of the Interior, Bureau of Land Management, New Mexico State Office,U.S. Geological Survey5
- U.S. Department of the Interior, Bureau of Land Management,For sale by U.S. Department of the Interior, Bureau of Land Management, Wyoming State Office,U.S. Geological Survey5
- s.n.5
- Council for Geoscience4
- Dept. of the Interior, U.S. Geological Survey4
- Engraved, printed and published by G.W. & C.B. Colton & Co., No. 172 William St.4
- Geological Survey Branch, Newfondland Dept. of Mines and Energy4
- Government Printer4
- Mineral Development Division, Department of Mines and Energy4
- North Carolina Dept. of Natural Resources and Community Development, Geological Survey Section4
- North Carolina Dept. of Natural and Economic Resources, Office of Earth Resources4
- The Survey : [Books and Open-File Reports Section, distributor]4
- BRGM3
- Central Intelligence Agency3
GeoBlacklight version 4.1.0
