TY - RPRT TI - "The great cataract" - Effects of late Holocene debris flows on Lava Falls Rapid, Grand Canyon National National Park, Arizona AU - Robert H. Webb AU - Theodore S. Melis AU - Thomas W. Wise AU - John G. Elliott PY - 1996 DO - 10.3133/ofr96460 UR - https://pubs.usgs.gov/publication/ofr96460 ID - ofr96460 ER -