
Monuments
Accuracy is vitally important.
It's time consuming to find and verifying monuments that are:
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NAD83 (2011)
Physically intact
Accessible
Appropriate Accuracy
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In our Monument Blog below, you will find a growing list of high quality monuments with helpful information to use for your own verification.​
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ArcGIS Field Maps
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No more awkward fussing with the NGS datasheet!!
Mobile Device Users: Click to Open the Monuments ArcGIS Field Map!
A few More Helpful Tools for Verifying Accuracy
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Monuments Geodatabase: New Jersey (NJSP EPSG ID 6527)
Pennsylvania (PASP South EPSG ID 6565)
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Use this tool to compare your observed XY to the true values of the monument.
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NOAA Computation of GEOID12B Geoid Height
Use this tool to compare your observed ellipsoid height to the true height of the monument.
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