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- Geological Survey (U.S.)22,535
- United States. Central Intelligence Agency1,850
- Tanzania. Idara ya Upimaji na Ramani1,152
- Geological Survey of Canada1,125
- United States. Defense Mapping Agency. Hydrographic/Topographic Center1,094
- United States Coast Survey, issuing body840
- United States803
- Kentucky Geological Survey792
- United States Coast Survey778
- United States. Bureau of Land Management759
- United States. Army Map Service735
- Rand McNally and Company637
- United States. National Aeronautics and Space Administration593
- United States. Forest Service498
- United States. National Park Service406
- United States. Bureau of the Census381
- Bache, A. D. (Alexander Dallas), 1806-1867364
- U.S. Coast and Geodetic Survey364
- U.S. Coast and Geodetic Survey, issuing body364
- United States. Bureau of Land Management, cartographer338