• Find both print & online Dibblee geologic maps in Library Search.
• Online Dibblee maps are available to UCSC faculty, staff & students only

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

USGS geologic maps 

• National Geologic Map Database (USGS​)
  • Results point to a USGS report, use the Publications Warehouse to find them online.
• USGS Publications Warehouse 
  • Click Advanced Search
  • Select Report Number from the next drop down
  • Type in the report number

Other Sources:

• California Geoportal
• California Geological Survey

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.

• State of California Geoportal
• US Geological Survey Online Store : click into "Map Locator" for topographic and aerial maps to download
• National Map interactive national mapping from USGS
• National Atlas federal source for national maps and geographic information
• TopoZone: Topographic maps (many scales available).