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|Source:||National Geodetic Survey|
This layer represents the point database of National Geodetic Survey (NGS) Monuments. The user can choose to view only the monuments with Horizontal Order at or above 2, Vertical Order at or above 2, or Continuously Operating Reference Stations (CORS). This dataset is updated on a monthly basis by the NGS and an automated update process keeps it up to date on uGRIDD. A URL in the pop-up bubble routes the user to the dynamic datasheet, providing the most recent information.