View NGS VERTCON for Google Earth

National Geodetic Survey (NGS) calculates the datum shift between NGVD 1929 and NAVD 1988 at  NGS calculates this datum shift using Latitude and Longitude.  This web application simply reports the datum shift as a placemark within Google Earth.  Google Earth needs be be installed ( before successfully using the link below.

Open the NGS_Vertcon.kml file in Google Earth.  It will dynamically query NGS's database based on the center coordinates of Google Earth.  It will display a placemark with the datum shift.

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