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Earth Sciences: Geologic Maps

A guide to the reference sources and indexes to the journal literature in earth sciences.

Geologic Maps

USGS national and regional geologic and hydrologic maps in series are in grey file cabinets in Kresge Library, and are shelved by series letter and number. Extraterrestrial geologic maps are there also.

The book, Guide to USGS Geologic and Hydrologic Maps, is a guide to these maps, and to maps in the USGS Bulletins and Professional Papers. It allows you to locate maps by quadrangle name, county and state, coordinates, or type of map. The Guide is located above the map cases in Kresge.

  • You can find individual maps in the Library Catalog - search by subject (example), by keyword (example), or by title (example "Colorado 1:50,000").
  • Many geological maps are published as part of journal articles and books, and can be found attached to those publications online, or in Kresge Library.
  • Most of the flat maps in the library collections are shelved in the Evans Map Room on the 2nd floor of Berry Library, which also has a variety of indexes for locating particular maps.

The USGS National Geologic Maps Database includes a map catalog and a lexicon of geologic names of the United States.   Read more

Good sources of maps on the Web are: