Fresh map layout of the geology of the McDowell Mountains, with cross section, correlation chart, and two dozen images.

We are releasing a second suite of Phil Anderson’s geologic mapping and research of Proterozoic rocks, which includes geologic mapping and geochemical sampling of the Central Arizona Arch that covers roughly 3,000 square miles in central Arizona.

Utah Geological Survey (UGS) and the University of Utah Seismograph Stations (UUSS) release a 1:500,000 scale ‘Utah Earthquakes (1850-2016) and Quaternary Faults’ map.