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NGS Suppresses Height Information for Southeast Texas

March 12, 2021

As of March 2021, NGS has suppressed the publicly available height information on datasheets for southeast Texas. This region includes Beaumont, Houston, Galveston, and Rosenberg. All the survey marks in the area - except for 28 marks listed on the Southeast Texas Valid Orthometric Heights page - have had their heights suppressed. The suspect heights were removed from the top of the datasheets and listed, if specifically requested, in the superseded section. Until new surveys are completed and this new data is submitted to NGS, only the 28 marks listed are considered to have valid orthometric heights for use in mapping, surveying, construction, engineering, or other purposes. NGS continues to offer multiple opportunities to meet with regional stakeholders and discuss collaborative opportunities to collect, process, and submit updated height information.

For more information, contact: Boris Kanazir