TY - RPRT TI - Lava Falls Rapid in Grand Canyon: Effects of Late Holocene debris flows on the Colorado River AU - Robert H. Webb AU - Theodore S. Melis AU - Peter G. Griffiths AU - John G. Elliott AU - Thure E. Cerling AU - Robert J. Poreda AU - Thomas W. Wise AU - James E. Pizzuto PY - 1999 DO - 10.3133/pp1591 UR - https://pubs.usgs.gov/publication/pp1591 ID - pp1591 ER -