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- United States. Forest Service71
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- Rand McNally and Company36
- Geological Survey (U.S.)25
- H.M. Gousha Company24
- United States. Bureau of Indian Affairs. Phoenix Area Office. Branch of Roads22
- Mulford, John C., cartographer18
- Automobile Club of Southern California15
- United States. Office of Strategic Services. Research and Analysis Branch14
- Rand McNally and Company, cartographer, publisher9
- Minnesota Map Publishing Co.8
- Rand McNally and Company, cartographer8
- United States. Army Map Service8
- United States. Office of Strategic Services8
- Clason Map Co.7
- Clason Map Co., cartographer, publisher7
- TTK Healthcare Limited. Publications Division7
- Connecticut. State Highway Dept6
- Oregon State Highway Commission6
- United States. Public Roads Administration6
