Landslides hazards are common in mountainous areas of the Southwest and include fast-moving debris flows, large slow moving landslides, and other ground- failure related hazards. In Arizona, historical landslides number in the hundreds and have caused tens of millions of dollars of damage to infrastructure and property. Evidence of past landslides exist in all 15 Arizona counties and in, or adjacent to, large metropolitan centers, such as Flagstaff, Phoenix, Tucson, Prescott, and elsewhere.
Fact Sheet: Landslides in Arizona: Just the facts - https://library.azgs.arizona.edu/item/PPPP-1552429166236-951
Natural Hazards in Arizona Viewer (w/ landslide theme) - http://uagis.maps.arcgis.com/apps/webappviewer/index.html?id=98729f76e46...
Building a statewide inventory of landslides in Arizona - GSA poster/abstract https://library.azgs.arizona.edu/item/PPPP-1552428299453-262
Photographer: US Geological Survey
Photo Date: circa 2005