Thick pumice layers about 4 miles northeast of center of Mount St. Helens. Skamania County, Washington. n.d.
Summary
Index card: Thick pumice layers about 4 miles northeast of center of Mount St. Helens. Maximum height of outcrop is about 30 feet. Entire sequence above shovel (lower center) was erupted within the last 4,500 years. Skamania County, Washington. n.d. Published as left photo, p. B92 in U.S. Geological Survey. Professional Paper 1240-B. 1981.
Summary
Index card: Thick pumice layers about 4 miles northeast of center of Mount St. Helens. Maximum height of outcrop is about 30 feet. Entire sequence above shovel (lower center) was erupted within the last 4,500 years. Skamania County, Washington. n.d.
Published as left photo, p. B92 in U.S. Geological Survey. Professional Paper 1240-B. 1981.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Photos stacks slides collection area, Mount St. Helens Collection, Mullineaux, D.R. album.
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