Vertical control markers based on National Geodetic Vertical Datum 1929 geodetic network. Data is updated as needed. The data for all 100 counties were given to NC CGIA on 3.5 inch diskettes. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data.
All data is available through standard ordering procedures on a cost recovery basis.
Other formats are available. Format compatibility is the user's responsibility.