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Slide description: Oblique aerial view across summit crater. Helicopter in view at right. 1509 hrs. Skamania County, Washington. April 10, 1980. No index card available.
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Typed caption accompanying slides: General view of Mount St. Helens from the north between the 1st and 2nd eruptive pulses (17:57). Skamania County, Washington. (Photo by R. Hoblitt). Index card (nos. 1ct-98ct): Series of essentially time lapse photographs recording the three major eruptive pulses that began at 17:14 hours, 18:30 hours, and 19:02 hours Pacific Daylight Savings Time, July 22, 1980. Photographs were taken by Jim Vallance in a fixed wing aircraft, Michael P. "Mike" Doukas, Harry Glicken, and Richard P. "Rick" Hoblitt in a helicopter. Skamania County, Washington. (Complete captions on file). Note: Mount St. Helens - List of color transparencies (slides) of the July 22, 1980 eruption. The following...
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Slide description: Oblique aerial view of southwest flank of Mount St. Helens. Ash being deflated from flank by strong winds. Skamania County, Washington. April 2, 1980. (Plane wing visible at left).
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Typed caption accompanying slides: 19:18:25 new pyroclastic flow deposits from third eruptive pulse cover crater floor. Skamania County, Washington. (Photo by R. Hoblitt). Index card (nos. 1ct-98ct): Series of essentially time lapse photographs recording the three major eruptive pulses that began at 17:14 hours, 18:30 hours, and 19:02 hours Pacific Daylight Savings Time, July 22, 1980. Photographs were taken by Jim Vallance in a fixed wing aircraft, Michael P. "Mike" Doukas, Harry Glicken, and Richard P. "Rick" Hoblitt in a helicopter. Skamania County, Washington. (Complete captions on file). Note: Mount St. Helens - List of color transparencies (slides) of the July 22, 1980 eruption. The following slides (1-114)...
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Typed caption accompanying slides and index card: Scenic view, at 20:54 hours (PDT), looking northeast at ash plume at dusk. Skamania County, Washington. (Photo by Richard P. Hoblitt). Note: Mount St. Helens - List of color transparencies (slides) of the July 22, 1980 eruption. The following slides (1-114) 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 began at 17:14, 18:30 and 19:02 PDT.
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Slide description and index card (69ct, 79ct): Mount St Helens in eruption. Oblique aerial view of Mount St. Helens from the northwest: first view of new crater/north side. Photos are within seconds of each other. 20:09 hrs. Skamania County, Washington. May 18, 1980. (Portion of plane wing visible at left).
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Typed caption accompanying slides: 19:01 pyroclastic flow continues to develop, ash fountain increases. Skamania County, Washington. (Photo by R. Hoblitt). Index card (nos. 1ct-98ct): Series of essentially time lapse photographs recording the three major eruptive pulses that began at 17:14 hours, 18:30 hours, and 19:02 hours Pacific Daylight Savings Time, July 22, 1980. Photographs were taken by Jim Vallance in a fixed wing aircraft, Michael P. "Mike" Doukas, Harry Glicken, and Richard P. "Rick" Hoblitt in a helicopter. Skamania County, Washington. (Complete captions on file). Note: Mount St. Helens - List of color transparencies (slides) of the July 22, 1980 eruption. The following slides (1-114) of the July...
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Slide description and index card: Logging truck, 7.5 miles north-northwest of Mount St. Helens, destroyed by lateral blast of May 18, 1980. Truck was overturned and propelled downslope until restrained by heavy cable installed to anchor other logging equipment. Skamania County, Washington. May 18, 1980. Portion published as upper photo, p. B92 in U.S. Geological Survey. Professional Paper 1240-B. 1981; portion published on p. 691 in U.S. Geological Survey. Professional Paper 1250. 1981.
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Slide description: Aerial view into Mount St. Helens summit craters; septum between two craters still exists. Skamania County, Washington. April 2, 1980. No index card available.
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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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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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Slide description: Telephoto view of summit area of Mount St. Helens viewed from southwest, showing snow darkened by ashfall on north slope. Skamania County, Washington. March 30, 1980. No index card available.
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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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Slide description and index card: Aerial view of Mount St. Helens southwest flank: "Two-Fingers" lava flow left of center, "Mitten" lava flow right of center. Skamania County, Washington. September 28, 1979. (Part of plane visible in upper left corner).


map background search result map search result map Photo of Mount St. Helens after the third eruptive pulse of July 22, showing increased pyroclastic flow and ash fountain. Skamania County, Washington. 1980. Pyroclastic flow deposits from the third eruptive pulse of the Mount St. Helens July 22 eruption. Skamania County, Washington. 1980. Scenic view of Mount St. Helens after the July 22 eruption, looking northeast at ash plume at dusk. 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 Mount St. Helens summit region. Goat Rocks dome near center. Skamania County, Washington. 1979. General view of Mount St. Helens from the north between the 1st and 2nd eruptive pulses on July 22, 1980 eruption. Skamania County, Washington. 1980. Logging truck, 7.5 miles north-northwest of Mount St. Helens, destroyed by lateral blast of May 18. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens in eruption, showing the first view of the new crater and north side of the volcano. 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 southwest flank of Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view down into Mount St. Helens crater showing debris at bottom. Skamania County, Washington. 1980. Oblique aerial view showing both craters at Mount St. Helens summit and septum separating them. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens summit phreatic eruption. Skamania County, Washington. 1980. Oblique aerial view looking easterly at Mount St. Helens summit and phreatic eruption. Skamania County, Washington. 1980. Oblique aerial view looking easterly at Mount St. Helens summit and phreatic eruption. Skamania County, Washington. 1980. Oblique aerial view looking southeast, Mount St. Helens phreatic eruption plume continuing to build. Skamania County, Washington. 1980. Oblique aerial view across Mount St. Helens summit crater. Skamania County, Washington. 1980. Telephoto view of summit area of Mount St. Helens viewed from southwest. Skamania County, Washington. 1980. Aerial view into Mount St. Helens summit craters. Skamania County, Washington. 1980. Photo of Mount St. Helens after the third eruptive pulse of July 22, showing increased pyroclastic flow and ash fountain. Skamania County, Washington. 1980. Pyroclastic flow deposits from the third eruptive pulse of the Mount St. Helens July 22 eruption. Skamania County, Washington. 1980. Scenic view of Mount St. Helens after the July 22 eruption, looking northeast at ash plume at dusk. 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 Mount St. Helens summit region. Goat Rocks dome near center. Skamania County, Washington. 1979. General view of Mount St. Helens from the north between the 1st and 2nd eruptive pulses on July 22, 1980 eruption. Skamania County, Washington. 1980. Logging truck, 7.5 miles north-northwest of Mount St. Helens, destroyed by lateral blast of May 18. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens in eruption, showing the first view of the new crater and north side of the volcano. 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 southwest flank of Mount St. Helens. Skamania County, Washington. 1980. Oblique aerial view down into Mount St. Helens crater showing debris at bottom. Skamania County, Washington. 1980. Oblique aerial view showing both craters at Mount St. Helens summit and septum separating them. Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens summit phreatic eruption. Skamania County, Washington. 1980. Oblique aerial view looking easterly at Mount St. Helens summit and phreatic eruption. Skamania County, Washington. 1980. Oblique aerial view looking easterly at Mount St. Helens summit and phreatic eruption. Skamania County, Washington. 1980. Oblique aerial view looking southeast, Mount St. Helens phreatic eruption plume continuing to build. Skamania County, Washington. 1980. Oblique aerial view across Mount St. Helens summit crater. Skamania County, Washington. 1980. Telephoto view of summit area of Mount St. Helens viewed from southwest. Skamania County, Washington. 1980. Aerial view into Mount St. Helens summit craters. Skamania County, Washington. 1980.