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![White volcanic ash layer which marks major volcanic eruption line5242.jpg White volcanic ash layer which marks major volcanic eruption](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_line5242.jpg?itok=xKIc-x-n)
Description
White volcanic ash layer which marks major volcanic eruption. This layer isknown as the White River Ash and was formed from a super eruption of MountChurchill in about 650 A.D. Mount Churchill is located close to Mt. St. Elias. (Image credit: Dr. John Cloud)
Photographer
Dr. John Cloud
Display Date
2010 September
Location
Canada, Yukon Territory
Collection
America's Coastlines
NOAA Affiliation
NOAA Central Library