Geologist Dave Johnston with gas-detection instrument at Mount St. Helens. Skamania County, Washington. 1980.
Dates
Date Taken
1980-04-04
Summary
Album caption: Geologist Dave Johnston with gas-detection instrument at Mount St. Helens. Skamania County, Washington. April 4, 1980. Index card unavailable.
Summary
Album caption: Geologist Dave Johnston with gas-detection instrument at Mount St. Helens. Skamania County, Washington. April 4, 1980.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Mount St. Helens Collection.
Rights
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