the GIS Data Depot
Sites listed here are key lists of geo-data sources sponsored and compiled by others.
The original sites referenced here were the topic of an article I wrote in 1997.
It appears that the FGDC is no longer maintaining (or making available) their lists of other geodata sites which the article referenced, and do not appear here.
FGDC Clearinghouse Referral Server for NSDI nodes
CAST, the Center For Advanced Spatial Technologies at the Univ. of Arkansas; compiled by Stephan Pollard
CGRER University of Iowa Center for Global & Regional Environmental Research; compiled by Mark MacLennan
U.S. Federal Data Sources
U.S. State Sources
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