TY - RPRT TI - Sediment delivery by ungaged tributaries of the Colorado River in Grand Canyon, Arizona AU - Robert H. Webb AU - Peter G. Griffiths AU - Theodre S. Melis AU - Daniel R. Hartley PY - 2000 DO - 10.3133/wri004055 UR - https://pubs.usgs.gov/publication/wri004055 ID - wri004055 ER -