Arizona Geological Survey

The Arizona Geological Survey (AZGS) was established by the Arizona Legislature to investigate and describe Arizona's geology and to educate and inform the public regarding its geologic setting. Each year since 1915, AZGS has released geologic maps, formal reports, and other geology-related publications. In Tucson, the Survey maintains a geological library comprising more than 15,000 volumes and approximately 100 linear feet of mine files that include newspaper clippings, maps, mine schematics and mine reports; it also maintains a small core repository of donated rock core. In addition, AZGS archives well cuttings of more than 1,000 oil and gas wells on behalf of the Arizona Oil and Gas Conservation Commission. The AZGS Phoenix branch maintains tens-of-thousands of mine maps and reports acquired in 2011 when the Arizona Department of Mines and Mineral Resources merged with AZGS. The Survey main office is located in the State Office complex in downtown Tucson). Provided by Wikipedia