Filters: Tags: bare earth (X) > Types: GeoTIFF (X)

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High-resolution digital elevation model for Mount Adams and vicinity, Washington, based on lidar surveys of August-September, 2016 Mount Adams, also known by the Native American names "Klickitat" or "Pahto", is a 3,742 meter-tall (12,278 feet) stratovolcano located 53 km (33 miles) north of the Columbia river straddling the borders of Skamania County, Yakima County and the Yakama Nation Reservation. Mount Adams lies in the middle of the Mount Adams volcanic field—a 1,250 square kilometer area (about 480 square miles) comprising at least 120, mostly basaltic volcanoes that form spatter and scoria cones, shield volcanoes, and some extensive lava flows. The volcanic field has been active for at least the past one million years. Mount Adams was active from about 520,000 to about 1,000 years ago and has erupted mostly andesite. Eruptions have occurred... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Bare Earth, Bare Earth Hydroflattened, Breaklines, Clark County, DEM, All tags... Digital Elevation Model, Elevation data, Hillshade, Hydrology, Klickitat, Klickitat County, Lewis County, Lidar, Light Detection and Ranging, Mount Adams, Pahto, Shaded Relief, Skamania County, Topography, US, USGS Science Data Catalog (SDC), Volcano, Volcanology, WA, Washington, Yakama Nation, Yakima County, elevation, Fewer tags High-resolution digital elevation model of Mount St. Helens and upper North Fork Toutle River basin, based on airborne lidar surveys of July-September, 2017 The lateral blast, debris avalanche, and lahars of the May 18th, 1980, eruption of Mount St. Helens, Washington, dramatically altered the surrounding landscape. Lava domes were extruded during the subsequent eruptive periods of 1980-1986 and 2004-2008. During 2017, U.S. Forest Service contracted the acquisitions of airborne lidar surveys of Mount St. Helens and upper North Fork Toutle River basin, part of a larger 2017-2018 survey of the Gifford Pinchot National Forest. The U.S. Geological Survey combined and reprojected 81 raster datasets, provided by the U.S. Forest Service in October 2018, into a single digital elevation model (DEM) of the ground surface, including beneath forest cover (that is, 'bare earth').... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: ALS, Cascade Range, Cowlitz County, DEM, Ecology, All tags... Geochemistry, Geography, Geomorphology, Geophysics, Glaciology, Hydrology, Land Use Change, Loowit, Mount St. Helens, North Fork Toutle River, Remote Sensing, Sedimentology, Seismology, Soil Sciences, Structural Geology, Toutle River, USA, USGS Science Data Catalog (SDC), Volcanology, WA, Washington, Water Quality, Water Resources, airborne laser scanning, bare earth, biota, digital elevation model, elevation data, geomorphology, glacier, hydrology, lidar, light detection and ranging, sediment, topography, volcanic landforms, volcano, volcano, Fewer tags