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GEOID12B Released

Thursday, April 23, 2015

​From NGS

"When using the geoid models, please be advised that GEOID12B should supersede previous models GEOID12 and GEOID12A. GEOID12B is identical to GEOID12A everywhere, except in Puerto Rico and Virgin island region. For more detail, please read Technical details."

Visit the GEOID12B page at NGS:

NC-SC Boundary Commision Meeting

Monday, March 23, 2015


WHAT:  The joint boundary commission is a cooperative effort between North Carolina and South Carolina to reestablish our original common boundary, which is the official boundary, in order to minimize jurisdictional conflicts caused by the uncertain location of this boundary.  The purpose of this meeting is to discuss the proposed legislation to be filed in each state to reduce impacts on those residents and property owners affected by the clarification of the boundary.
WHEN:        Friday, March 27, 2015 10 a.m. to 2 p.m.
WHERE:     Baxter Hood Center, Bowater Room
York Technical College
452 South Anderson Road
Rock Hill, SC 29730
10:00   Welcome, introductions, and objectives for the day
Alan-Jon Zupan, meeting moderator and co-chair of the NC-SC Joint Boundary Commission
10:10   Review and discussion of the proposed legislation to minimize impacts on affected residents and property owners
11:30   Public Comments
12:00   Lunch
12:45   Discussion on the proposed legislation (continued)

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:


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