The Geospatial Data Clearinghouse is a collection of over 250 spatial data
servers,
that have digital geographic data primarily for use in Geographic
Information Systems
(GIS), image processing systems, and other modelling
software. These data collections
can be searched through a single
interface based on their descriptions, or "metadata."
Click on the name of a Clearinghouse Gateway on the map below
that is closest
to you and you will be presented with a selection of query
forms. All entry points or
gateways shown have exactly the same lists of
servers.
Go to FGDC Website...