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How reliable are the GCDB survey-based coordinates?

April 26, 2017coordinates gcdb survey-based

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How reliable are the GCDB survey-based coordinates?

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The Public Land Survey System (PLSS) data served to the public via the Land Survey Information System (LSIS) website varies in reliability from township to township. Most of the PLSS data distributed through LSIS is Geographic Coordinate Data Base (GCDB) data in GIS shapefile format. Flat files (ASCII) is available upon request.