Earth, Geographic, and Climate Sciences

Your go-to source of information about GIS, GIST, and mapping resources at the University of Massachusetts Amherst.

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Comprehensive directory of descriptions of data sets of relevance to global change. Topics include aerosols, air quality, altitude, atmospheric chemistry, electricity, phenomena, pressure, radiation, temperature, and wind/clouds/precipitation.

Housed at the University of Texas, this site contains over 11,000 map images of areas around the world on various themes, including historical maps. It also provides links to other map sites.

Explore all USGS Maps and refine your search by type, topic, year, location, and advanced search.