We are heartbroken by the news that Paul John Umhoefer (Ph.D.) passed away on November 24, 2021, in Flagstaff, AZ, at the age of 66.
Recent Posts
Can cacti sequestration of carbon dioxide play a role in global carbon sequestration program?
UArizona geoscientists engaged in post-wildfire impact on geologic processes impacting geomorphology.
Free online resources served by the Arizona Geological Survey.
Recent seismicity in southeastern AZ, southwestern NM, and northern Mexico may reflect long term phenomenon coupled with the Great Sonoran M7.5 event of 1887.
A fresh, holistic Grand Canyon Stratigraphy.
Earth fissures reopen near Dragoon Rd. and elsewhere in Willcox Playa area.
Geologic strip map from Kingman to Bill Williams Mountain, Arizona.
New geologic map of rare oceanic peridotite exposure at Cemetery Ridge in southwestern Arizona by Jon Spencer and Gordon Haxel.
Flagstaff's Museum Fire 2019 continues to produce damaging debris flows during 2021 summer monsoon season.
Extensive ground fractures damage U.S. 191 in Cochise County.
Rebooting AZ Geology newsletter
LiDAR data can improve sinkhole identification on the densely forested Walhalla Plateau of northern Arizona.
A review of 100 years of paleontology research at Grand Canyon National Park, Arizona.
Arizona surges to the top of mining jurisdictions worldwide.
Fossil track-way discovered in the Moenkopi Formation, Flagstaff, Arizona.
HB 2037 reinforces the position of the AZGS as a research unit situated in the UArizona, with funding provided by annual appropriation from the state general fund.
A history of the Christmas Mine, Gila County, Arizona
NPS releases a 100-page, illustrated report detailing the geologic resources of the Tonto National Monument of central Arizona.
AZGS report, "Landslide mapping along the Interstate-17 corridor from Anthem to Flagstaff, AZ" is now available online.
