- Geological Survey (U.S.), cartographer, publisher38
- Great Britain. Ordnance Survey38
- Hackman, Robert J.37
- Morden, Robert, approximately 1650-1703, cartographer37
- National Wetlands Inventory (U.S.)37
- United States. Office of Strategic Services37
- Canada. Bureau of Geology and Topography35
- G.W. & C.B. Colton & Co., cartographer, publisher35
- United States. Army. Corps of Engineers35
- Arrowsmith, John, 1790-187334
- Bowen, Emanuel, 1693 or 1694-1767, cartographer33
- United States. Forest Service. Southern Region33
- National Geographic Society (U.S.). Cartographic Section32
- United States. Forest Service. Southwestern Region32
- Marshall, C. H.31
- Survey of India31
- American Geographical Society of New York28
- G.W. & C.B. Colton & Co.28
- United States. Office of Strategic Services. Research and Analysis Branch, cartographer28
- Young, J. H. (James Hamilton), cartographer28
GeoBlacklight version 4.1.0
