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Geographic Coordinate DataBase What Where How Fred Wheeler Cadastral Surveyor

Bureau of Land Management GCDB. Geographic Coordinate DataBase What Where How Fred Wheeler Cadastral Surveyor Central Valley Chapter – CLSA April 25, 2012. Geographic Coordinate Data Base. What Makes Up a GCDB?. Why is a GCDB needed?. What is the GCDB?.

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Geographic Coordinate DataBase What Where How Fred Wheeler Cadastral Surveyor

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  1. Bureau of Land Management GCDB Geographic Coordinate DataBase What Where How Fred Wheeler Cadastral Surveyor Central Valley Chapter – CLSA April 25, 2012

  2. Geographic Coordinate Data Base What Makes Up a GCDB? Why is a GCDB needed?

  3. What is the GCDB? • A seamless network of Survey and Land Description records. • Provides increased GIS accuracies for the PLSS corners. • Provides basis for integration of additional Survey and Land records for defining other parcels • Base for the CadNSDI - Land Information System

  4. Data Collection GMM and PCCS Flat Files – NAD 1927

  5. Data Collection NILS DataBase – NAD 1983

  6. Federal Records State/Local Private Records Other Flat files or Database GCDB

  7. Data Collection GCDB data collection has created ASCII flat files using BLM developed software. • PCCS • GMM GeoCommunicator is the public website for publication of the BLM and FS Land Records. (www.geocommunicator.gov)

  8. Uses for the GCDB data • It can be used to improve the positional accuracies of GIS data • Surveyors and land managers can use coordinates to search for property corner monuments • Land managers can use data to plan for land uses.

  9. Where to get the GCDB. • GMM and PCCS data • http://www.blm.gov/ca/st/en/prog/cadastral/gcdbpage.html • ftp://ftp.blm.gov/pub/CA/gcdb • See the gcdbread.txt & caluser.doc for info • GeoCommunicator • http://www.geocommunicator.gov

  10. GeoCommunicator

  11. GeoCommunicator the Data Publication Website

  12. GeoCommunicator the Data Publication Website

  13. Land and Minerals Use

  14. Land Survey Information System

  15. Land Survey Information System

  16. Need more Information? Contact the GCDB staff at: Bureau of Land Management Branch of Geographic Services, GCDB Section 2800 Cottage Way Sacramento, CA 95825 (916) 978 - 4340 Or Phone:

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