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Remote Sensing Resources NGS Data Sheets NGS CORS -- continually operating reference stations GPS data NGS Nautical Charts Tidal Benchmark Sheets from NOAA CO-OPS Elevation Data -- tidal and orthometric from CO-OPS/NGS LDART -- Lidar data retrieval tool from NOAA CSC OPUS -- online GPS positioning service National Data Buoy Center NGS GPS Observation Log NGS GPS Visibility notes NGS Survey Marker Recovery/Description form NGS Survey Marker Pencil Rubbing form

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National Oceanic and Atmospheric Administration/ National Ocean Service/ National Geodetic Survey Last modified: May 16 2017	Remote Sensing Division Research & Development