Creator
- Geological Survey (U.S.)8
- Instituto Nacional de Estadística, Geografía e Informática (Mexico)8
- Canada Centre for Remote Sensing6
- Canada Centre for Mapping2
- National Atlas of the United States2
- California. Department of Fish and Game. Marine Resources Region1
- International Association of Seismology and Physics of the Earth's Interior1
- International Heat Flow Commission1
- Oklahoma State University. Department of Geography. Cartography Service1