TAG: GPS on BMs program

Example of a Large Difference Between Geoid12B and Geoid18 in Western North Carolina (Screenshot: National Geodetic Survey)

How to use the NGS Beta GEOID18 web map

June 5, 2019

Image: National Geodetic Survey

NGS 2018 GPS on BMs program in support of NAPGD2022 — Part 8

August 1, 2018

Photo: Zilkoski

NGS 2018 GPS on BMs program in support of NAPGD2022 — Part 5

February 7, 2018