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A Modern Louisiana Geodetic Control Network

Get the Geoid18 files that work in your data collector

GULFNet CORS Enable NOAA BMs in La.

Call to Action GPS on BenchMarks

Surveyors Historical Society Annual Rendezvous

NGS Expands GEOID12 Error Notice

La. R.S. 50:173.1. Vertical control standards

GEOID12 errors found in Louisiana and Mississippi

The National Geodetic Survey (NGS) issued a notice on Saturday, August 4, 2012 stating that they have determined that the new hybrid geoid model, GEOID12, contains localized errors in Louisiana and Mississippi. Click here for more information.

GEOIDS – Something’s Fishy in the Cornpatch!

GEOID12 Error Analysis Complete and GEOID12A Model Developed

Free Post-Processing Services

Get CORS Data Directly From C4G

GULFNET & C4GNET ALIGNED WITH THE NSRS

C4Gnet.XYZ RTN Status Messages

SubjectStart DateEnd Date Solar Cycle 251/8/20255/17/2026 We are approaching the peak years of the latest solar cycle (the 25th since the phenomenon was tracked), which will peak in 2025.During this [...]

C4Gnet.XYZ RTN Status Messages

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