NGSCS Radial Search creates a Google Earth network link that plots the approximate location of NGS control stations within a specified distance of the view center. Requires Google Earth Version 4.3 or later.

Using the “Radial Search” retrieval method, look for the closest “Any Vertical Control” in the Data Type Desired drop down list.

‘This network, the National Spatial Reference System (NSRS), provides the foundation for transportation and communication; mapping and charting; and a multitude of scientific and engineering applications’