Bear Canyon, Santa Catalina Mountains, Tucson, AZ | Debris flow scar in Bear Canyon from debris flows that occurred in July 2006. Hillslope soil and sediment was stripped down to bedrock by debris flows at many locations throughout the Santa Catalinas following days of heavy rain. Note the person for scale at the bottom of the chute and the size of the adjacent boulders.
Online resources: Youberg, A. and others, 2008, Geologic Mapping of Debris-flow deposits in the Santa Catalina Mountains, Pima County, Arizona: Arizona Geological Survey Digital Map - Debris Flow Map 01 (DM-DF-01), map scale 1:6,000. http://repository.azgs.az.gov/uri_gin/azgs/dlio/118 Pearthree PA and Youberg A, 2006, Recent debris flows and floods in southern Arizona. http://www.azgs.az.gov/Hazards_ocr/Floods%20_%20Debris%20Flows/Recent%20...
