Fine-time-scale DEM analysis illuminates long-term geomorphic legacy of 1980 Mount St. Helens eruption in North Fork Toutle River watershed

Jon J Major, USGS Cascades Volcano Observatory, Vancouver, WA, United States, Kristin Sweeney, University of Portland, Portland, OR, United States, Adam R Mosbrucker, U.S. Geological Survey, Vancouver, WA, United States, Gordon Grant, US Forest Service, Corvallis, OR, United States and Kurt R Spicer, US Geological Survey, Vancouver, WA, United States