Creator
- U.S. Bureau of Reclamation, Mid-Pacific Region, MPGIS Service Center1
- Uganda Bureau of Statistics1
- United Nations Office for the Coordination of Human Affairs1
- United States. Bureau of Customs and Border Protection1
- United States. Bureau of Transportation Statisticsf1
- United States. Central Intelligence Agency1
- United States. Department of Commerce1
- United States. Department of Housing and Urban Development1
- United States. Federal Highway Administration. Office of Highway Policy Information1
- United States. Federal Railroad Administration1
- United States. National Imagery and Mapping Agency1
- United States. National Ocean Service1
- United States. Office of Strategic Services1
- Uppal, Danny1
- Various sources1
- Yolo County, Public Works Division, Planning Services 1