Author
- Conservation Lands Network20
- County of Napa ITS Department1
- County of San Mateo Information Services Department3
- Department of Commerce, Census Bureau, Geography Division1
- Digital Social Science Center (DSSC)1
- Digital Social Science Center (DSSC), Columbia University Libraries1
- Direccao Geral de Geografia c Cadastro9
- Dr. Robert F. Holland1
- ESRI45
- Earth Resources Observation Systems1
- Economic and Social Research Institute6
- Erie National Wildlife Refuge1
- Ethiopian Mapping Agency6
- FHWA3
- Federal Aviation Administration1
- Federal Emergency Management Agency (FEMA)1
- Federal Highway Administration2
- Federal Highway Administration (FHWA)2
- Federal Highway Administration, Office of Planning, HEPP-17
- Federal Motor Carrier Safety Administration1