A message from the USGS, via SoCal GIS:
Hello California GIS users.
We wanted to make everyone aware of several map services that USGS supports. These allow you to view nationwide data from The National Map in your GIS software. To use these in ArcGIS – select Add Data button then choose GIS Server from the list, then “add ArcGIS Server”
To add the tiled map cache (these are background topographic map images, including topo maps with and without imagery), use: http://basemap.nationalmap.gov/ArcGIS/rest/services
If you want raster data services, use: http://raster.nationalmap.gov/ArcGIS/rest/services
And if you want vector data services use: http://services.nationalmap.gov/ArcGIS/rest/services
There is also a NED status service (this shows availability and resolution of USGS digital elevation models) at: http://igskmncnvs526.cr.usgs.gov/arcgis/rest/services
Hope these help and please let us know if you have any questions. Thanks,
Carol Ostergren
Drew Decker
USGS Geospatial Liaison for Pacific Region
NSDI Partnership Office, U.S. Geological Survey
4165 Spruance Road, Suite 200
San Diego, CA 92101
619-225-6430
619-225-6101 fax
http://liaisons.usgs.gov/geospatial/California/
http://liaisons.usgs.gov/geospatial/Hawaii/