Recent Changes
Oct-2008:
New interactive maps for geophysical data grids: gravity anomaly, magnetic anomaly, and aeroradiometric surveys
Oct-2008:
New interface for the USGS State Geologic Map Compilation
Sep-2008:
Updated data for National Geochemical Survey
Aug-2008:
Updated data for Mineral Resource Data System (MRDS)
Mar-2008:
Topical index now allows browsing by scientific author
Jan-2008:
Metadata (XML) and projection (PRJ) files now included with most data download packages.