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  • From July 31 to August 1, 2006, an unusual set of atmospheric conditions aligned to produce record floods and an unprecedented number of slope failures and debris flows in southeastern Arizona. In the Santa Catalina Mountains north of Tucson, 435 slope failures spawned debris flows on July 31 that, together with flood runoff, damaged structures and roads, affecting infrastructure within Tucson’s (Arizona) urban boundary. For more information on this event please see U.S. Geological Survey publication online: http://pubs.usgs.gov/of/2008/1274/
    Sabino Canyon & Other Sites
    (8 pictures)