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 Geodetic News

GPS on Bench Marks Webinar

Tuesday, March 03, 2015

NOAA’s National Geodetic Survey encourages anyone with survey-grade Global Positioning System (GPS) receivers or GPS-enabled phones and hand held devices to help collect GPS on Bench Marks.  This webinar will provide guidance to collect GPS observations at any time, including during National Surveyors Week (March 15–21, 2015). Joining the 2015 effort will help raise awareness about professional surveying while improving the National Spatial Reference System (NSRS).

To register and for more information on the webinar (March 5th, 3pm et), visit:

For more information on GPS on Bench Marks, visit:

NCGS Database Updates

Wednesday, December 03, 2014

​The North Carolina Geodetic Survey online database has been updated to correct errors in the NAD27 position history. An export entire state option has also been added to the data export area that replaces the download by county option. If you would just like to download the entire state, click here. The download contains all the coordinate information for the entire state.


Error in the NC Geodetic Database’s Position History section (NAD 27 only)

Tuesday, September 16, 2014

Please be aware that the NC Geodetic Database’s Position History section has been incorrectly displaying a station’s NAD 27 State Plane Coordinates (SPC) position (northing and easting).  Although the database correctly displays a station’s NAD 27 geographic position (latitude and longitude), it has been incorrectly displaying the corresponding NAD 27 SPC position (northing and easting).  Consequently, we are working to correct this problem as soon as possible.

In the meantime, please use the GEODETIC to SPC tool ( to convert a NAD 27 geographic position (latitude and longitude) to its corresponding NAD 27 SPC position (northing and easting).


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