Geologist Don Swanson at work on instrument tower at Harry's Ridge. Skamania County, Washington. 1980.
Dates
Date Taken
1980
Summary
Album caption: Steel towers used in geodetic monitoring of Mount St. Helens. A. Geologist Don Swanson at work on instrument tower at Harry's Ridge. Skamania County, Washington. 1980. (Post-eruption view) Published as figure 94-A in U.S. Geological Survey. Professional paper 1250. 1981. Index card unavailable.
Summary
Album caption: Steel towers used in geodetic monitoring of Mount St. Helens. A. Geologist Don Swanson at work on instrument tower at Harry's Ridge. Skamania County, Washington. 1980. (Post-eruption view) Published as figure 94-A in U.S. Geological Survey. Professional paper 1250. 1981.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Mount St. Helens Collection.
Rights
This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html