TY - RPRT TI - Debris flows from tributaries of the Colorado River, Grand Canyon National Park, Arizona AU - R. H. Webb AU - P. T. Pringle AU - G.R. Rink PY - 1987 DO - 10.3133/ofr87118 UR - https://pubs.usgs.gov/publication/ofr87118 ID - ofr87118 ER -