Skip to main content

Arizona Geological Survey

Arizona Geological Survey Thumbnail Image


Our Mission

The Arizona Geological Survey (AZGS) chief objective is to inform, advise, and educate the public about Arizona's geologic setting, and to encourage prudent development of Arizona's land, water, mineral, and energy resources.

We accomplish our mission through fundamental geologic research - geologic mapping, mineral assessment, and geohazard evaluation - and by broadly disseminating the results of that work. History. The Arizona Geological Survey is the latest in a line of academic departments and state agencies serving the people of the Arizona Territory and now the State of Arizona. In 1883, then Territorial of Arizona Governor Tritle, requested federal assistance in establishing a geologic survey for the Territory. The U.S. Congress responded in 1888 by creating the post of Territorial Geologist of Arizona. The unpaid position of Territorial Geologist went first to John F. Blandy, who served until the mid-1890s. Upon gaining statehood in 1912, the position of Territorial Geologist was abolished.

Territorial and State Geologic Agencies of Arizona from 1888 to Present

Time Window Survey Name
1988-Present Arizona Geological Survey
1977-1988 Arizona Bureau of Geology and Mineral Technology
1915-1977 Arizona Bureau of Mines
1893-1915 The University of Arizona Bureau of Mines
1888-1893 Office of the Territorial Geologist

Networks & Partnerships

AZGS networks with a host of geosciences agencies and societies in joint support of our collective mission to illuminate the role of the Earth sciences in meeting the needs of human society. Our network friends include: US Geological Survey, Association of American State Geologists, Arizona Geological Society, Arizona State Park, Arizona Dept. of Water Resources, Arizona Dept. of Mines and Mineral Resources, COPUS, OneGeology, and Year of Science 2009, among others.

Our partnership with the US Geological Survey provides partial funding for our role in the nationwide State Maps program. We collaborate with the Arizona Geological Society on developing and disseminating publications of both local and international significance. Resources. The AZGS Library, open M-F from 8:00 a.m. till 5:00 p.m., is located at 401 W. Congress St., Tucson, Arizona. Library holdings total more than 15,000 volumes. Our collection of Arizona publications, reports, and geologic maps is particularly rich makes up the foundation of the library. Of course, we hold all reports, circulars, bulletins, and geologic maps and cross-sections published by the Arizona Geological Survey and its predecessor agencies.

Other Services

We also host a myriad collection of geologic guidebooks, field trips, reports, and circulars for California -- this is our most robust out-of-state collection -- Colorado, Nevada, New Mexico, and to a much lesser extent, Oklahoma. Our other chief holdings include:

  • Arizona Water Resources Bulletins
  • Arizona Department of Mines and Minerals Resources publications
  • Arizona County Soil Maps
  • Select theses and dissertations pertaining to Arizona geology
  • University of Arizona Geodaze Papers
  • USGS Bulletins
  • USGS Miscellaneous Investigations Series
  • USGS Circulars
  • USGS Miscellaneous Map Series
  • USGS Water Resource Papers
  • US Dept of Interior: Bureau of Mines - Report of Investigations
  • Numerous general & specialized geology and geophysics texts.
  • Arizona Geological Society Indexes and Field Trips.
  • A Rock Core Library
  • Oil and Gas Conservation Commission Rock Cuttings
  • Oil and Gas Conservation Commission Well Logs

Director & Staff

AZGS's current director, M. Lee Allison, is also Arizona's State Geologist. For a full listing of AZGS Staff and staff profiles visit For web-based information:

Contributed Collections


Dr. Michael Conway
Arizona Geological Survey
416 W Congress Street, Suite 100
Tucson, AZ 85701
(520) 770-3500

Rights & Reproduction

Property of Arizona Geological Survey; All Rights Reserved.

Select the collections to add or remove from your search