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Index card: Aerial view of erosion which began almost immediate after the May 18 eruption - channel incision in the blast zone, Smith Creek. Geologist for scale. Skamania County, Washington. October 4/5, 1980.
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Index card: Oblique aerial view looking into the crater one week after the eruption of Mount St. Helens. Notice the low cloud deck and steam rising from the crater. Skamania County, Washington. May 1980.
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Index card: Shortly after the eruption water was flowing through the mudflow and entering the stream at the canyon as a spring. This water is clear and cold. You notice the stratigraphy of the mudflow and debris deposited throughout. Man for scale. Skamania County, Washington. 1980.
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Index card (115ct-118ct): Different oblique aerial views of more trees downed. Note how blast followed the contours of the mountainside. Skamania and/or Cowlitz County, Washington. 1980.
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Index card: Another view of the debris in the North Fork Toutle River valley. Note blast material slumping into gullies gouged by the mudflows. Cowlitz County, Washington. August 22, 1980. (Photo by Lyn Topinka, USGS/CVO).
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Index card: Oblique aerial view of Mount St. Helens, after the May 18 eruption, from the same point as photo 72ct (cvoa0072_ct). Forests are gone. Light-colored material is pumice from pyroclastic flows. Note material blasted over ridge into South Coldwater Creek. Skamania County, Washington. September 8, 1980. (Photo by Harry Glicken, USGS/CVO).


map background search result map search result map Mudflow spring. Mount St. Helens, Skamania County, Washington. 1980. Trees bent over by Mount St. Helens mudflow. ​Cowlitz County, Washington. 1980. Trees bent and sanded off to sharp needle points. Mount St. Helens, Cowlitz County, Washington. 1980. Oblique aerial view looking into the crater. Mount St. Helens, Skamania County, Washington. 1980. Mount St. Helens, after the May 18 eruption.  Skamania County, Washington. 1980. Larger rock in the Mount St. Helens avalanche material. Washington. 1980. Trees downed. Mount St. Helens, Washington. 1980. Erosion, channel incision in the blast zone, Smith Creek. Mount St. Helens, ​Skamania County, Washington. 1980. Downed logs on Spirit Lake. Mount St. Helens, Skamania County, Washington. 1981 The August Mount St. Helens lobe extrusion. Skamania County, Washington. 1982. Taking deformation readings in winter at Mount St. Helens. Skamania County, Washington. 1983. Oblique aerial view showing devastation to the topography of the Toutle River valley. Mount St. Helens, Cowlitz County, Washington. 1980. Oblique aerial view of the rampart and crater of Mount St. Helens. Skamania County, Washington. 1980. Caked mudflow material on debris below Coldwater Lake. Mount St. Helens, Skamania County, Washington. 1980. View of the debris from Mount St. Helens in the North Fork Toutle River valley. Cowlitz County, Washington. 1980. Ash burst from Mount St. Helens, seen from Harry's Ridge. Skamania County, Washington. 1983. View of Mount St. Helens dome after sunrise. Skamania County, Washington. 1982. Ash plume rising from Mount St. Helens. Skamania County, Washington. 1980. View from within the helicopter approaching Mount St. Helens. Skamania County, Washington. 1983. Map of Cascade Eruptions, 7000-1000 years to present. Oregon and Washington. 1980. Trees bent over by Mount St. Helens mudflow. ​Cowlitz County, Washington. 1980. Trees bent and sanded off to sharp needle points. Mount St. Helens, Cowlitz County, Washington. 1980. Oblique aerial view showing devastation to the topography of the Toutle River valley. Mount St. Helens, Cowlitz County, Washington. 1980. View of the debris from Mount St. Helens in the North Fork Toutle River valley. Cowlitz County, Washington. 1980. Mudflow spring. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view looking into the crater. Mount St. Helens, Skamania County, Washington. 1980. Mount St. Helens, after the May 18 eruption.  Skamania County, Washington. 1980. Erosion, channel incision in the blast zone, Smith Creek. Mount St. Helens, ​Skamania County, Washington. 1980. Downed logs on Spirit Lake. Mount St. Helens, Skamania County, Washington. 1981 The August Mount St. Helens lobe extrusion. Skamania County, Washington. 1982. Taking deformation readings in winter at Mount St. Helens. Skamania County, Washington. 1983. Oblique aerial view of the rampart and crater of Mount St. Helens. Skamania County, Washington. 1980. Caked mudflow material on debris below Coldwater Lake. Mount St. Helens, Skamania County, Washington. 1980. Ash burst from Mount St. Helens, seen from Harry's Ridge. Skamania County, Washington. 1983. View of Mount St. Helens dome after sunrise. Skamania County, Washington. 1982. Ash plume rising from Mount St. Helens. Skamania County, Washington. 1980. View from within the helicopter approaching Mount St. Helens. Skamania County, Washington. 1983. Larger rock in the Mount St. Helens avalanche material. Washington. 1980. Trees downed. Mount St. Helens, Washington. 1980. Map of Cascade Eruptions, 7000-1000 years to present. Oregon and Washington. 1980.