- Engraved and printed by the U.S. Geological Survey1
- Földtani Intézet1
- General Land Office1
- Geological Association of Canada1
- Geological Society of America, Williams & Heintz Map Corporation)1
- Geological Survey Branch, Dept. of Mines and Energy1
- Geological Survey Dept1
- Geological Survey Division1
- Geological Survey of New Jersey1
- Geologická služba Slovenskej republiky1
- Georgia Geological Survey1
- Gulf Coast Association of Geological Societies,American Association of Petroleum Geologists,Columbus Bank Note Company, lithographers1
- Idaho Dept. of Lands, Bureau of Mines and Geology1
- Illinois Department of Energy and Natural Resources, Illinois State Geological Survey1
- Interior -- U.S. Geological Survey,For sale by the U.S. Geological Survey1
- Interior, Geological Survey1
- International Travel Maps1
- Iowa Geological Survey1
- Library Geological Survey of Israel1
- Manitoba, Dept. of Mines, Resources & Environmental Management, Mineral Resources Division1
GeoBlacklight version 4.1.0
