Metadata

Generally, for the conterminous United States, the North American Datum (NAD) shift amounts to about 210 meters. This shift occurs because of the change in shape of the spheroid used to define the datum. The GRS 80 spheroid (used for NAD 83) is shorter...
SDTS is the acronym for the Spatial Data Transfer Standard. SDTS is a FIPS(173) and FGDC (STD-002) standard that defines a non-proprietary format for packaging vector or raster spatial data with attributes, metadata, a data quality report and usually a...
A feature is something shown on a map, and it has characteristics or properties, which can be represented in feature-based Digital Line Graph (DLG) data using attributes and values.
The USGS Geographic Names Project maintains an active and extensive program to add features not in the database, primarily through partnerships with Federal, State, and local agencies, and with other organizations having relevant data.The GNIS Web-based...
Often, users of the data can misinterpret the content of certain fields. The field entitled "USGS 7.5' map" may be one of these fields. Upon examination, please note that the entry indicates that the "community" name associated with the named feature is...