Forty Years of Fieldnotes & Arizona Geology -- 1971-2010 Online at

"What's up down there?" asked Wes Pierce in the first issue of AZGS's newsletter serial, Fieldnotes, V. 1, No. 1, March 1971.* AZGS's moniker then was Arizona Bureau of Mines and retiring Director J.D. Forrester (1956-1971) charged Acting Director R.M. Edwards with publishing a newsletter informing the public about the state of Earth sciences in Arizona. Forty years, two institutional name changes, and one newsletter name change later -- from Fieldnotes to Arizona Geology in fall-1988 -- the newsletter envisioned by J.D. Forrester is still going strong.

And now, the entire archive, more than 150 issues published since 1971, is available online at

On 3 December 2010, Lee Allison broadcast the following in his Arizona Geology Blog, "Newsletters written for consumption by the general public as well as the geoscience community, with topics that range widely from geologic hazards – earthquakes, earth fissures, debris flows and floods, volcanism, and landslides – to economic minerals – copper, gold, manganese, uranium, oil & gas, and industrial minerals – to volcanism, geothermal resources, breccia pipes, and the origin of Grand Canyon."

And here is a sampling of articles through the years.

  • Glyptodonts in Arizona: Saga of Supercontinents (2010)
  • Holocene Mapping of the San Pedro River System (2009)
  • Recent Debris Flows and Floods in Southern Arizona (2006)
  • Development Devours Aggregate (2002)
  • Catastrophic Natural Disasters in Arizona (2001)
  • Oil and Gas in Arizona: Good News and Bad News (1999)
  • Grand Canyon – More Rain and Rockslides (1995)
  • Land Subsidence in the Salt River Valley West of Phoenix (1993)
  • Industrial Minerals of Southeastern Arizona (1992)
  • Geology of the Vulture Gold Mine (1989)
  • Volcanic History of Arizona (1986)
  • Thermal Springs of Arizona (1981)
  • Uranium in Arizona (1980)
  • Earthquakes in Arizona (1976)
  • Evaporite Developments: Thickest Anhydrite in the World? (1973)
  • The Economic Importance of Mineral Industry Land Use in Arizona (1971)

*In "What's up down there?" Pierce was drawing attention to the cuttings library of the Arizona Oil & Gas Conservation Commission maintained at the Arizona Geological Survey – that library still exists and is complemented by a core library comprising drill core donated by exploration companies.

Additional Note. In 2007, and in response to growing budget constraints, Arizona Geology went from a quarterly newsletter to one published triannually. For additional savings, we discontinued printed copies in Spring 2009 and now publish wholly online.

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Arizona Geology is published by the Arizona Geological Survey. | © The Arizona Geological Survey, 2011. All Rights Reserved.
Editor: Michael Conway