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Filters: Tags: Cowlitz County, Washington (X)

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Index card: View to north of mouth of Coldwater Creek from on top of debris avalanche deposit on May 24, 1980. Cowlitz County, Washington.
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Index card: Front end loader removing mud from SR 504 about 2 miles upstream from Coal Bank bridge. Cowlitz County, Washington. July 15, 1980.
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Index card: South abutment and piers, Coal Bank bridge, on SR 504 along North Fork Toutle River. Cowlitz County, Washington. July 15, 1980.
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Index card: Graph showing the travel time of the mudflow event on the South Fork Toutle River and North Fork Toutle River. Note in the mid-range of both forks velocities were comparable. No velocities were collected to the upper reaches of the North Fork Toutle River. Note also the dots which show the travel time for flood event occurring August 27, 1980. Concentration of sediment from the May 18, 1980 mudflows range to 850,000 milligrams per liter, and the concentrations for the August 27, 1980 event ranged to 400,000 milligrams per liter. Travel times through the river reach, however, were not that much different. Cowlitz County, Washington. 1980.
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Index card: Near distal margin of debris flow about 3 miles east of Camp Baker. Cowlitz County, Washington. July 15, 1980.
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Index card: View of eroded avalanche and blast material in North Fork Toutle River valley, five miles downstream from mountain. Material is 450 feet deep at this point. Cowlitz County, Washington. 1980.
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Index card: Devastation along the North Fork Toutle River resulting from the May 18, 1980 lahars. Note mudlines on trees and on house near balcony. Cowlitz County, Washington. March 26, 1981. (Photo by Lyn Topinka)
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View to north of mouth of Coldwater Creek from top of Mount St. Helens debris avalanche deposit. Cowlitz County, Washington. May 24, 1980.
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Album caption and index card: South abutment, 525-foot Coalbanks bridge on SR 504, North Fork Toutle River. Cowlitz County, Washington. July 11, 1980.
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Index card: View taken after the eruption of May 25, 1980, showing the remaining gully system on the left side of the North Fork Toutle valley with thickness of avalanche material ranging from 100 feet in the foreground to 150 feet in the upper portion of the view. This shot is taken approximately one mile downstream from Elk Rock, and at a subsequent location of a USGS gaging station. Cowlitz County, Washington. 1980.
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Index card: I-5 bridge over Toutle River. Note mud line on left abutment and paint removed from main girder by logs. Cowlitz County, Washington. July 5, 1980.
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Index card: Oblique aerial view showing Mount St. Helens and South Fork Toutle River mudflow after the May 25, 1980 ash eruption. Note the large gully in the upper center of the view. Skamania and Cowlitz Counties, Washington. 1980.


map background search result map search result map Oblique aerial view showing Mount St. Helens and South Fork Toutle River mudflow. Skamania and Cowlitz Counties, Washington. 1980. View of North Fork Toutle valley gully system. Mount St. Helens, Cowlitz County, Washington. 1980. Eroded avalanche, North Fork Toutle River valley. Mount St. Helens, ​Cowlitz County, Washington. 1980. Coldwater Lake Exit Early Warning Flood Gage. Mount St. Helens, Cowlitz County, Washington. 1983. Recovery of time lapse camera at Coldwater I observation station. Mount St. Helens, Cowlitz County, Washington. 1980. View to north from top of Mount St. Helens debris avalanche deposit. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. Mount St. Helens. Cowlitz County, Washington. 1980. Bridge washed out on SR 504 near Camp Baker. Cowlitz County, Washington. 1980. Graph showing the travel time of the mudflow event on the South Fork Toutle River and North Fork Toutle River. Mount St. Helens, Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1981. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Clark County and Cowlitz County, Washington. 1980. View of North Fork Toutle valley gully system. Mount St. Helens, Cowlitz County, Washington. 1980. Eroded avalanche, North Fork Toutle River valley. Mount St. Helens, ​Cowlitz County, Washington. 1980. Coldwater Lake Exit Early Warning Flood Gage. Mount St. Helens, Cowlitz County, Washington. 1983. View to north from top of Mount St. Helens debris avalanche deposit. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. Mount St. Helens. Cowlitz County, Washington. 1980. Bridge washed out on SR 504 near Camp Baker. Cowlitz County, Washington. 1980. Graph showing the travel time of the mudflow event on the South Fork Toutle River and North Fork Toutle River. Mount St. Helens, Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1981. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Mount St. Helens. Cowlitz County, Washington. 1980. Recovery of time lapse camera at Coldwater I observation station. Mount St. Helens, Cowlitz County, Washington. 1980. Mount St. Helens. Clark County and Cowlitz County, Washington. 1980. Oblique aerial view showing Mount St. Helens and South Fork Toutle River mudflow. Skamania and Cowlitz Counties, Washington. 1980.