Walter library carries a an up-to-date set of US topographic maps through a government deposit program. These are 7.5-minute topographic quadrangle maps, nearly 60,000 sheets in all, at the 1:24,000-scale (1:25,000 metric).
These maps are available for checkout to provide a convenient alternative to printing maps from the USGS web store.
- Topographic sheets in Walter
The 1:24,000 scale topographic sheets are organized by state (see diagram) and arranged alphabetically by quadrangle name (ie. "Hennepin, Minnesota". Check the State index to help you locate the quadrangle covering the specific area you need.
- Topographic Maps Online
Topographic maps are available for free download at the US Geologic Survey store. Search with their online map tool to download or to find the print version from Walter.
- Map Library (John R. Borchert)
Additional scales are located in the sub basement of Wilson Library. Scales include: 1:50,000, 1:62,000, 1:100,000, 1:250,000. Older topo maps are housed here as well.
USGS Series Maps
The United States Geologic Survey produces several maps and series containing maps: most are fully indexed in the library catalog. USGS series held in Walter include:
- Geologic Atlas of the United States Online
- USGS Maps Series: Reference 206 Maps Vertical files and Flat drawers G3701 .C3 - G9801 .C5
- USGS Bulletin: Periodicals (Level B, S) QE 75 .B9
- USGS Circular: Periodicals (Level B, S) QE 75 .C5
- USGS Water Resource Data (state): Periodicals (Level B, S) GB 1225.M6 W37
- Water Resource Investigations Report: Periodicals (Level B, S) GB 701 .W375
- and other natural resource surveys (oil, coal, miscellaneous...)
- Guide to USGS Publications
TC Walter Sci/Eng Library Books (Level F) QE77 .U56x 1998 Latest edition in WALTER SCI/ENG Reference
Geologic Maps by Region
Most countries and states produce their own geologic maps and surveys. The library has a broad collection of maps with particular emphasis on Minnesota Geological Survey publications. Search the catalog for maps by name, subject and library location. Or browse our collection by state, country, world region (ie. oceans).
- Minnesota Geologic Maps
The Minnesota Geological Survey (MGS) has been publishing maps and data for over 100 years. Download digitized map pdf's from their Current Publications page. (Note: all MGS maps are held in Walter library and available for check out)
- Geology Maps by State (US)
- Online: State Geologic Surveys
Association of American State Geologists represents each state's geologic survey center that publishes maps and data. Locate maps from their site and search our catalog for location and availability.
- Geology Maps by Country (World)
- Online: OneGeology World maps
One Geology covers world geology and each country member represents their geologic survey centers. Maps are available for download or print request. Some country geologic maps are located in Walter library. If there is a particular country you are interested in, contact your geology librarian.
- National Geophysical Data Center
"The National Geophysical Data Center (NGDC) manages environmental data in the fields of marine geology and geophysics, paleoclimatology, solar-terrestrial physics, solid earth geophysics, and glaciology (snow and ice). Data and inventories in many disciplines are fully searchable and selected listings, data, and images can be downloaded."
The atlases are located in the reference room 206 along the north west wall. Please contact the reference desk for requests to check out these items.
Additional Map Resources
- MapHappy Beta
Search the maps in the libraries using a Google Maps mashup.
Search MNCAT, the libraries' catalog, to find maps owned by the library. Limit your search by library location (Science & Engineering Library) to view primarily geologic maps for your topic.
Index to the worldwide literature of geology, geophysics, geochemistry, paleontology, hydrogeology , hydrology, and mineralogy. Publication types covered include journal articles, books, conference proceedings, government publications, theses, reports, and maps. Provides citations, with a small percentage accompanied by abstracts. Produced by the American Geological Institute.
- Map Library (John R. Borchert)
Main repository for cartographic materials, including thousands of maps, atlases, and aerial
photographs. The Automated Cartographic Information Center provides
access to digital spatial data, allowing library patrons to create and print their own maps.
Map Citation Guide
The University of Ohio has created a nice resource on how to cite maps both from print and online.
Page Coordinator: Carolyn Bishoff firstname.lastname@example.org
This URL: http://www.lib.umn.edu/libdata/page.phtml?page_id=2698