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Filters: Tags: Skamania County, Washington (X)

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Album caption: Oblique aerial view of Mount St. Helens as viewed from the north, sequence (4A-J) showing about the first 30 seconds of the second eruptive pulse of July 22, 1980. Photographs 4A-J (photos nos. 3-12) taken at about 3-second intervals beginning at 1825:20±5 PDT; photograph 4J taken about 6 second after 4I. Arrow (4H) indicates projection from pyroclastic fountain. Dashed line (4H) indicates front of pyroclastic density flow. Skamania County, Washington. (Photos by J.W. Vallance; graphic on published photos only; see also MSH-July 22, 1980 nos. 5ct-15ct in USGS Photo Library) Published as figure 4-C in U.S. Geological Survey. Professional paper 1335. 1986. Index card unavailable.
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Index card (58ct-68ct): Various oblique aerial views of Mount St. Helens, showing crater, flanks, rim. Photos 66ct and 67ct include Spirit Lake in distance. A good bit of airborne ash in some of these views. Skamania County, Washington. 1980.
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Index card: View of the Plains of Abraham, on the east flanks of Mount St. Helens. Skamania County, Washington. June 1978. (Photo by Lyn Topinka)
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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 and index card: Mount St. Helens. Diagrammatic cross-section, pre-eruption, winter 1979-80. Skamania County, Washington. 1980.
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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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Album caption: Oblique aerial view of Mount St. Helens as viewed from the north sequence (4A-J) showing about the first 30 seconds of the second eruptive pulse of July 22, 1980. Photographer 4A-J (photos nos. 3-12) taken at about 3-second intervals beginning at 1825:20±5 PDT; photograph 4J taken about 6 seconds after 4I. Arrow (4H) indicates projection from pyroclastic fountain. Dashed line (4H) indicates front of pyroclastic density flow. Skamania County, Washington. (Photos by J.W. Vallance; graphics on published photos only; see also MSH-July 22, 1980 nos. 5ct-15ct in USGS Photo Library) Published as figure 4-B in U.S. Geological Survey. Professional paper 1335. 1986. Index card unavailable.
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Album caption: Oblique aerial view of Mount St. Helens amphitheater as viewed from the north on July 22, 1980, sequence (9A-G) (photos nos. 17-23), showing the formation of a pyroclastic density flow during the early part of the third eruptive pulse. A, 1900:59; B, 1901:03 PDT, timed photographs by the author; C, 1901:08 PDT, photo by Harry X. Glicken, time from comparison with a timed pgotograph that is not shown; D,E,F,G untimed sequence taken within 30 seconds after C, Harry X. Glicken. Skamania County, Washington. (See also MSH-July 22, 1980 nos. 69ct-75ct) Published as figure 9-B in U.S. Geological Survey. Professional paper 1335. 1986. Index card unavailable.
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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: 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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Slide description: Near oblique aerial view of craters and ash-rich eruption plumes. Skamania County, Washington. April 2, 1980. (Part of plane visible at center and lower right). No index card available.


map background search result map search result map Shoestring Glacier, southeast side of Mount St. Helens. Skamania County, Washington. 1970. Aerial view of crater rim, lower part of eruptive column and ash cloud. Mount St. Helens, Skamania County, Washington. 1980. View of north flank of Mount St. Helens from Timberline Viewpoint. 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 at rim edge - beheaded Shoestring Glacier. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Aerial view of explosion pit on pumice plain. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens in eruption, viewed from the west. Skamania County, Washington. 1980. Near oblique aerial view of Mount St. Helens craters and ash-rich eruption plumes. Skamania County, Washington. 1980. Mount St. Helens. Skamania County, Washington. 1978. Telephoto view of summit area of Mount St. Helens viewed from southwest. Skamania County, Washington. 1980. Aerial view looking south into Mount St. Helens crater. Skamania County, Washington. 1980. Mount St. Helens. Skamania County, Washington. 1980. Mount St. Helens. Lewis County, Pierce County and Skamania County, Washington. 1980. Mount St. Helens. Skamania County, Washington. 1980. Sequence of photographs show second eruptive pulse on July 22, 1980. Mount St. Helens, Skamania County, Washington. Shoestring Glacier, southeast side of Mount St. Helens. Skamania County, Washington. 1970. Oblique aerial view looking down at dome and adjacent areas of crater floor. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view at rim edge - beheaded Shoestring Glacier. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens, showing crater, flanks, rim. Skamania County, Washington. 1980. Aerial view of explosion pit on pumice plain. Mount St. Helens, Skamania County, Washington. 1980. Oblique aerial view of Mount St. Helens in eruption, viewed from the west. Skamania County, Washington. 1980. Near oblique aerial view of Mount St. Helens craters and ash-rich eruption plumes. Skamania County, Washington. 1980. Mount St. Helens. Skamania County, Washington. 1978. Telephoto view of summit area of Mount St. Helens viewed from southwest. Skamania County, Washington. 1980. Aerial view looking south into Mount St. Helens crater. Skamania County, Washington. 1980. Mount St. Helens. Skamania County, Washington. 1980. Mount St. Helens. Skamania County, Washington. 1980. Sequence of photographs show second eruptive pulse on July 22, 1980. Mount St. Helens, Skamania County, Washington. Aerial view of crater rim, lower part of eruptive column and ash cloud. Mount St. Helens, Skamania County, Washington. 1980. View of north flank of Mount St. Helens from Timberline Viewpoint. Skamania County, Washington. 1980. Mount St. Helens. Lewis County, Pierce County and Skamania County, Washington. 1980.