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Author/Creator
- Geological Survey (U.S.)8
- Bankey, Viki1
- Bedford, David R.1
- Cartography Associates1
- Coe, J. A. (Jeffrey A.), 1960-1
- Coleman, Teresa1
- Consejo de Recursos Minerales (Mexico)1
- Davies, W. E.1
- Garrity, Christopher P.1
- Geological Survey of Canada1
- Godt, Jonathan W.1
- Hackley, Paul C.1
- Maps.com (Firm)1
- National Geophysical Data Center1
- National Spatial Data Infrastructure (Program : U.S.)1
- North American Magnetic Anomaly Group1
- Schaap, Bryan D.1
- Tobin, B. D.1
- United States. Environmental Protection Agency1
- Urbani P., Franco1