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- Geological Survey (U.S.)25
- United States. Bureau of the Census22
- United States. Public Roads Administration8
- United States. Forest Service. Southwestern Region7
- Geological Survey of Canada6
- Great Britain. War Office. General Staff. Geographical Section6
- Stewart, J. S. (James Smith), b. 18815
- United States. Forest Service5
- Alcock, Frederick James, 1888-4
- Raisz, Erwin, 1893-19684
- Rand McNally and Company4
- U.S. Coast and Geodetic Survey4
- United States. Forest Service. Intermountain Region4
- Harrison, Richard Edes. cartographer3
- Henderson, J. F. (James Fenwick), 1905-3
- National Geographic Society (U.S.). Cartographic Section3
- United States. Forest Service. California Region3
- United States. Forest Service. Southern Region, cartographer, publisher3
- WIlson, A. E.3
- Armstrong, J. E. (John Edward), 1912-2
