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USGS/Cascades Volcano Observatory, Vancouver, Washington

Volcano Deformation Project -
Mount St. Helens EDM Dome Monitoring Network

Mount St. Helens 1995 EDM network for monitoring the dome.
There are 4 instrument stations: Swani (2 km north of the dome), Lonesome, Earl, and Little Village. Both distance and angles (vertical and horizontal) are shot to each target.

Map, DOME EDM

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04/17/02, Lyn Topinka