TY - RPRT TI - Changes in channel geomorphology of six eruption-affected tributaries of the Lewis River, 1980-82, Mount St. Helens, Washington AU - H. A. Martinson AU - S. D. Finneran AU - L. J. Topinka PY - 1984 DO - 10.3133/ofr84614 UR - https://pubs.usgs.gov/publication/ofr84614 ID - ofr84614 ER -