Geographic Abbreviations and Acronyms
- C4GCenter for GeoInformatics
- CaliforniaCalifornia
- CALMITCenter for Advanced Land Management Information Technologies
- CALTRANSCalifornia Department of Transportation
- CAMFERCenter for the Assessment and Monitoring of Forest and Environmental Resources
- CANRICommunity Access to Natural Resources Information
- CANSISCanadian Soil Information System
- CANSPACECanadian Space Geodesy Forum
- CanVecCanadian Vector Data
- CAPCOCapital Area Planning Council
- CAPDUCanadian Association of Public Data Users
- CARLCanadian Association of Research Libraries
- CaSILCalifornia Spatial Information Library
- CAVACartographic and Audio-Visual Archives Division
- CAZRICentral Arid Zone Research Institute
- CCLSCanadian Council of Land Surveyors
- CCMEOCanada Centre for Mapping and Earth Observation
- CCNS4Computer Controlled Navigation System
- CCPSCentral Colorado Professional Surveyors
- CD-WCompact Disk Re-Writable
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