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Maps & Aerial Photos

Geologic Maps of California Online

The GEOLOGIC MAPS and most topographic maps are currently unavailable in print at UCSC.  However, many geologic maps are available online.

USGS geologic maps 

Other Sources:


Find USGS publications online

Most USGS publications are now available online:

  • Go the the USGS Publications Warehouse
    Click on advanced search in the middle of the screen.
  • Pull down the “Limit by” menu, and choose Report Series
  • An arrow will appear at the right end of the search box. When you click on it, you'll get a list of the USGS reports series. Select the one you want.  (try Bulletin)
  • In the search box at the top, fill in an author's name, a subject, or a title.
    • Sample author: Sweetkind
    • Sample subject: Loma Prieta
  • Results will be sorted by date, but you can also choose to sort by author or title.

Dibblee Collection

Dibblee Digital Geologic Map Collection  (UCSC faculty, staff & students only)

  • Purchase & download maps via the AAPG Store (non-UCSC affiliates)
  • Note: The Library also owns all Dibblee Maps in print format. All are listed in Library Search.

Topographic Maps