The Framework Web Feature Services are offered by the United States Geological Survey (USGS) in support of the development of the National Spatial Data Infrastructure (NSDI). Selected Framework data themes were redeployed by the USGS from their native database formats to services that conform to the Open Geospatial Consortium's (OGC) Web Feature Service (WFS) and Geography Markup Language for Simple Features (GML) specifications and the FGDC/ANSI Geographic Information Framework Data Content Standards. These services provide query and retrieval of specific Framework features and their attributes into a form usable for analysis in Geographic Information Systems (GIS). In addition, a Web Map Service (WMS) is provided to allow users to visualize the data content as a graphical image.

The initial data content for the NSDI Framework Data Services includes selected features from the Hydrography, Transportation and Governmental Unit Framework Data Themes. The data provided through this service are maintained for currency with the source data and systems using OGC Standards-Based WFS Transactions submitted by the USGS.

Please see the links below for information regarding service access, suggested usability guidelines, information schemas, specifications and free clients & utilities. Currently, an understanding of OGC Web Services Standards is important for the effective utilization of the NSDI Framework Data Services. Therefore; it is strongly recommended that users read the Usability Document before using the service. It not only includes general guidelines, but also instructions specific to the use of the service in clients such as Google Earth and The Carbon Project's CarbonArc Extension for ESRI's ArcGIS. Finally, to provide feedback or ask questions regarding the use of the service, please visit and register for the NSDI Framework Data Services Discussion Forum hosted by The Carbon Project at http://www.thecarbonportal.net.

SERVICE ACCESS
WFS Services: http://frameworkwfs.usgs.gov/framework/wfs/wfs.cgi
WMS Services: http://frameworkwfs.usgs.gov/framework/wms/cubeserv.cgi