For nearly 120-years, geologists of the Arizona Geological Survey (AZGS) and its predecessor agencies have explored, investigated, mapped, and published reports and geologic maps. These geologic products are available as free downloads at the AZGS Online Document Repository.
We also host an e-Magazine - formally Fieldnotes and Arizona Geology newsletter - Arizona Geology Blog (2007 - 2018), Arizona Mining Review e-Video Magazine (2013-2018), Youtube channel (AZGSweb), the AZGS Mining Data website, and social media - Facebook, Twitter, and Flickr.
100 years of geologic reports, bulletins, and maps available as free pdf downloads; no login required.
AZGS Mine Files: 20,000+ mine files, 1000s of mine & geology maps, & 6,000 photographs.
Short notes with images on the geology, mineral resources, environmental geology, and geologic hazards of Arizona.
AZGS's public outreach newsletter; preceded by Arizona Geology (1988 - 2011) and Fieldnotes (1971 - 1988).
AZGS's online E-video magazine, exploring the challenges and successes of Arizona’s mining industry (2013-2018).
Original AZGS geo-videos: geologic hazards - earthquakes, faults, landslides, earth fissures - and video reports.
Contains more than 13,000 citations from A.D. 1848 to 2001 of geologic studies from throughout Arizona.
For a complete list of resources, visit our Map & Database Services page.
Volumes 1 - 41 spanning 40 years (1971 - 2011).
Recent Publications
| 2019 | Geology of Flagstaff and Geologic History of Rio de Flag, Northern Arizona, with Trail Guides to Geology along Rio de Flag |
This geology and trail guide is for anyone who likes to walk, be outdoors, and is interested in the geology in and around Flagstaff. The geologic story is focused on Rio de Flag because it flows through Flagstaff, touches or passes by all of the geologic elements in the city, and is accessed easily. |
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| 2019 | Preliminary evaluation of mineral resources of the proposed Santa Cruz Valley National Heritage Area, Arizona |
Pearthree, P.A. and Conway, F.M., 2019, Preliminary evaluation of mineral resources of the proposed Santa Cruz Valley National Heritage Area, Arizona. Arizona Geological Survey Open-File Report OFR-18-03, 7 p. |
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| 2019 | Touring Geoheritage Sites of Flagstaff and Environs |
StoryMap tour of 30 prominent geoheritage sites the Flagstaff-area of northern Arizona. (Online feature) |
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| 2018 | Geologic Map of the North Trigo Peaks 7 ½ ' Quadrangle, La Paz County, Arizona |
Ferguson, C.A., Pearthree, P.A., Gootee, B.F., Johnson, B.J. and Spencer, J.E., 2018, Geologic Map of the North Trigo Peaks 7 ½ ' Quadrangle, La Paz County, Arizona. Arizona Geological Survey Digital Geologic Map (DGM) 123, two map plates, scale 1:24,000. |
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| 2018 | Geologic map of the Dragoon 7 ½ ' Quadrangle, Cochise County, Arizona |
Johnson, B.J., Cook, J.P. and Ferguson, C.A., 2018, Geologic map of the Dragoon 7 ½ ' Quadrangle, Cochise County, Arizona. Arizona Geological Survey Digital Geologic Map (DGM) 125, one map plate, map scale 1:24,000. |
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| 2018 | Geologic map of the Fort Thomas area, Graham County, Arizona |
Youberg, A.M. and Cook, J.P., 2018, Geologic map of the Fort Thomas area, Graham County, Arizona. Arizona Geological Survey, Digital Geologic Map (DGM)-126, one map sheet, 1:24,000 map scale. |
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| 2019 | Revised depth-to-bedrock and depth-to-base of Gila River deposits along the southern Higley and northern Picacho Basin boundary, Pinal County, Arizona |
Gootee, B.F., 2019, Revised depth-to-bedrock and depth-to-base of Gila River deposits along the southern Higley and northern Picacho Basin boundary, Pinal County, Arizona. Arizona Geological Survey Open-File Report OFR-18-01, 18 p. |