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Slide description: Oblique aerial view of Mount St. Helens summit: phreatic eruption - ash fall and as cloud at right, relatively clean snow in foreground. Skamania County, Washington. April 10, 1980. No index card available.
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Album caption: Aerial view of upper cone, looking west-southwest. Although seismic activity began under Mount St. Helens on March 20, this overflight showed no unusual features except numerous tracks of earthquake-triggered snow avalanches. No evidence of fracturing of summit area was detected during careful visual observations on the afternoon of March 24, 1980. On March 25, the first cracks were noted by Bud Kimball, Tacoma, Wash. Skamania County, Washington. March 24, 1980. (Photo by David Frank) Published as figure 17 in U.S. Geological Survey. Professional paper 1250. 1981. Index card unavailable.
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Index card: Aerial view of the dome of Mount St. Helens on June 28, 1980. Skamania County, Washington. Note: Similar to photo no. 4ct found in Leighley, T. Collection (msh_lt000004_ct).
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Album caption and index card: Oblique aerial view of the confluence of Columbia and Cowlitz Rivers showing suspended sediment and debris in the Cowlitz River caused by the eruption of Mount St. Helens on May 18, 1980. City of Longview in background. Cowlitz County, Washington. May 23, 1980. Published as figure 12 in U.S. Geological Survey. Circular 850-K. 1983.
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Slide description and index card (70ct, 81ct): Mount St. Helens in eruption. Oblique aerial view of Mount St. Helens from the west. Photos are within seconds of each other. 16:33 hrs. Skamania County, WAshington. May 18, 1980. (Tip of plane wing at left).
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Index card: Mount St. Helens in eruption: aerial view of crater rim, lower part of eruptive column and ash cloud, and cloud-covered countryside in background. 1010 hrs PDT. Skamania County, Washington. May 18, 1980.
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Typed caption not available. Note: Slide numbers 43 - 50 were taken at 19:01 and show the pyroclastic flow as it advances northward. Skamania County, Washington. July 22, 1980. Slide number 51 was taken at 19:02. Slide numbers 52 - 55 were taken at 19:03. Slide numbers 56 - 57 were taken at 19:04. Slide numbers 58 and 59 were taken at 19:04 and 19:05. Slide numbers 60 - 62 are views of the eruption and were taken at 19:06. Slide no. 52, msh_vjw00052_ct, is highlighted in this photo record. Slide no. 52 typed caption: View of eruption at 19:03, the plume develops a mushroom-like head while the elutriate cloud from the pyroclastic flow billows up through the cloud layer. Skamania County, Washington. (Photo...
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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 (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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Slide description and index card: Aerial view northeasterly across northwest flank of Mount St. Helens and canyon of South Fork Toutle River. Skamania County, Washington. September 28, 1979. (Part of plane wing visible at left).
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These slides of the July 22, 1980 eruption of Mount St. Helens were taken by Jim Vallance, who was in a U.S. Forest Service fixed wing aircraft and by Mike Doukas, Harry Glicken, and Rick Hoblitt who were in a U.S. Geological Survey helicopter. There were three major eruptive pulses on July 22, 1980. They begin at 17:14, 18:30 and 19:02 PDT. Slides no. 5 through 25 were taken between 18:25:20 and 18:26:30 This sequence was taken while moving counter-clockwise from the north to the west flank of Mount St. Helens at a distance of about 7 miles and while changing elevation from about 10,000 to 12,000 feet. Approximate 3 seconds after slide no. 14. (Wing of aircraft visible). Skamania County, Washington. (Photo by J....
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These slides of the July 22, 1980 eruption of Mount St. Helens. Jim Vallance was in a U.S. Forest Service fixed wing aircraft and Mike Doukas, Harry Glicken, and Rick Hoblitt were in a U.S. Geological Survey helicopter. There were three major eruptive pulses on July 22, 1980. They begin at 17:14, 18:30 and 19:02 PDT. 19:09 third eruptive pulse, view from west. Skamania County, Washington. (Photo by H. Glicken, USGS)
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Typed caption accompanying slide: Stereopair with slide no. 64 taken at 19:11. The plume encounters an atmospheric boundary and is planed off into an anvil shape at about 60,000 feet. Skamania County, Washington. (Photo by J. Vallance) Note: Slide numbers 43 - 50 were taken at 19:01 and show the pyroclastic flow as it advances northward. Skamania County, Washington. July 22, 1980. Slide number 51 was taken at 19:02. Slide numbers 52 - 55 were taken at 19:03. Slide numbers 56 - 57 were taken at 19:04. Slide numbers 58 and 59 were taken at 19:04 and 19:05. Slide numbers 60 - 62 are views of the eruption and were taken at 19:06. Slide no. 52, msh_vjw00052_ct, is highlighted in this photo record. Slide no....


map background search result map search result map Trees downed. Mount St. Helens, Washington. 1980. Trees downed. Mount St. Helens, Washington. 1980. These slides of the July 22, 1980 eruption of Mount St. Helens. Skamania County, Washington. 1980. Slides of the July 22, 1980 eruption of Mount St. Helens. Skamania County, Washington. 1980. Mount St. Helens; aerial view of upper cone, looking west-southwest. Skamania County, Washington. 1980. Aerial view northeast across northwest flank of Mount St. Helens and canyon of South Fork Toutle River. Skamania County, Washington. 1979. Aerial view of dome and crater floor from south, with scattered fumaroles. Mount St. Helens, Skamania County, Washington. 1981. Aerial view of dome and snow-covered crater, looking south. Mount St. Helens, Skamania County, Washington. 1981. Aerial view of crater rim, lower part of eruptive column and ash cloud. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of the confluence of the Columbia and Cowlitz Rivers. Cowlitz County, Washington. 1980. Aerial view of Toutle River debris flow surface. Mount St. Helens, Cowlitz County, Washington. 1980. Oblique aerial view of other-than-the-north flank of Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view looking down at dome and adjacent areas of crater floor. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens in eruption, viewed from the west. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens summit phreatic eruption. Skamania County, Washington. 1980. Aerial view looking south into Mount St. Helens crater. Skamania County, Washington. 1980. Aerial view on way in from west looking at Mount Saint Helens. Skamania County, Washington. 1980. Aerial view of the dome of Mount St. Helens on June 28. Skamania County, Washington. 1980. Sequence of photographs show second eruptive pulse on July 22, 1980. Mount St. Helens, Skamania County, Washington. Sequence of photographs show second eruptive pulse on July 22, 1980. Mount St. Helens, Skamania County, Washington. Oblique aerial view of the confluence of the Columbia and Cowlitz Rivers. Cowlitz County, Washington. 1980. These slides of the July 22, 1980 eruption of Mount St. Helens. Skamania County, Washington. 1980. Slides of the July 22, 1980 eruption of Mount St. Helens. Skamania County, Washington. 1980. Mount St. Helens; aerial view of upper cone, looking west-southwest. Skamania County, Washington. 1980. Aerial view northeast across northwest flank of Mount St. Helens and canyon of South Fork Toutle River. Skamania County, Washington. 1979. Aerial view of dome and crater floor from south, with scattered fumaroles. Mount St. Helens, Skamania County, Washington. 1981. Aerial view of dome and snow-covered crater, looking south. Mount St. Helens, Skamania County, Washington. 1981. Oblique aerial view of other-than-the-north flank of Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view looking down at dome and adjacent areas of crater floor. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens in eruption, viewed from the west. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens summit phreatic eruption. Skamania County, Washington. 1980. Aerial view looking south into Mount St. Helens crater. Skamania County, Washington. 1980. Aerial view on way in from west looking at Mount Saint Helens. Skamania County, Washington. 1980. Aerial view of the dome of Mount St. Helens on June 28. Skamania County, Washington. 1980. Sequence of photographs show second eruptive pulse on July 22, 1980. Mount St. Helens, Skamania County, Washington. Sequence of photographs show second eruptive pulse on July 22, 1980. Mount St. Helens, Skamania County, Washington. Aerial view of Toutle River debris flow surface. Mount St. Helens, Cowlitz County, Washington. 1980. Aerial view of crater rim, lower part of eruptive column and ash cloud. Mount St. Helens, Skamania County, Washington. 1980. Trees downed. Mount St. Helens, Washington. 1980. Trees downed. Mount St. Helens, Washington. 1980.