Author
- United States. Defense Mapping Agency. Hydrographic Center86
- Rand McNally and Company, cartographer, publisher83
- United States. Bureau of the Census. Geography Division76
- U.S. Lake Survey75
- United States. Forest Service. Eastern Region75
- National Atlas & Thematic Mapping Organisation (India)73
- United States. Bureau of Public Roads73
- United States. General Land Office60
- U.S. Fish and Wildlife Service59
- G.W. & C.B. Colton & Co., cartographer56
- Geological Survey of Alabama51
- Sanborn Map Company51
- United States. Forest Service. Northern Region49
- United States. Forest Service. Pacific Northwest Region46
- C.S. Hammond & Company45
- United States. Public Roads Administration44
- Geological Survey (U.S.), cartographer43
- United States. Forest Service. Rocky Mountain Region43
- United States. Forest Service. Intermountain Region41
- United States. Forest Service. Southern Region, cartographer, publisher39
