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Publisher
- United States. National Imagery and Mapping Agency116
- U.S. National Imagery and Mapping Agency (NIMA)81
- MassGIS (Office : Mass.)60
- Cape Town (South Africa) Strategic Development Information and GIS Department (CCT) 16
- Southern Africa Humanitarian Information Management System (SAHIMS)14
- MassGIS9
- Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)8
- Cambridge (Mass.). Geographic Information Systems7
- Cambridge (Mass.) Geographic Information Systems6
- Somerville (MA) Geographic Information System (City of Somerville GIS)6
- U.S. Federal Emergency Management Agency (FEMA)5
- Bureau of Transportation Statistics (BTS)4
- Snohomish County (WA) Geographic Information System (Snohomish GIS)4
- U.S. Geological Survey (USGS)4
- Atlanta Regional Commission3
- Boston Redevelopment Authority3
- South Africa Surveyor General-Cape Town2
- U.S. Bureau of Transportation Statistics (BTS)2
- US Bureau of the Census2
- Amtrak1