The Cline Library, Special Collections and Archives houses a great many unique, primary source materials dealing with the human and natural history of the Colorado Plateau. Below are some links to material in SCA's Digital Archives from a wide array of collections touching broadly on the subject of Geology and Arizona. Much of the material linked below comes from a wide array of sources and people including outdoor enthusiasts, river-runners, faculty, and members of the scientific community.
Documents, images, and reports:
Geology in Arizona by Place
Geology of Arizona-
Oral Histories that include Geology-
100 Years Grand (with ASU, and the Grand Canyon National Park Museum)