The County of Mathews has created this page to assist Surveyors, Engineers, RDP’s, Contractors and all interested parties.
The County has a number of documents to assist with horizontal and vertical datum.
Note: the current FEMA Flood Insurance Rate Maps (FIRMs) are based on the 1988NAVD.
In addition to the documents below, the following link can be used for NOAA NGS info:
Benchmark map (this map is not an all inclusive map)