Geology: Data and Web Sources
Guide for Library Research in Geology
Quality Web Sources
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Science.govGateway to authoritative selected science information provided by U.S. Government agencies.
minerals yearbook
Maps
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U.S. Geological Survey Map Locator & DownloaderUS Geological Survey manages and distributes many kinds of maps. This tool allows users to search for a location by zip code or place name, and navigate around an interactive map. Digital topographic maps can be downloaded in a GeoPDF format.
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USGS The National MapProvides interactive, high-quality, topographic maps and digital data.
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USGS National Hydrography DatasetConsists of digital spatial data about surface water features such as lakes, ponds, streams, rivers, springs and wells.