Today we measured the depths of two sites where holes had been dug into the ground to reveal the layering. We found the average measurement in centimeters for the top 5 biggest rocks to understand the scale of the rocks in that layer. Beside one of the sites we discovered the skeleton of a deer or elk that had been bleached by the sun. When we measured the different layers we found and studied tephra, pumice that had fallen from the plume after being blown by the wind. We had to measure and record the depth and the pumice rock sizes. Then we made our stratigraphic columns that showed the types and sizes of the rocks we uncovered within the layers. There were four locations to observe, but we only managed to reach two. After a long day of climbing steep hills of pumice to get to the sites we returned to camp to map out the sites as well as other points. Together we were able to determine the wind direction of the 1980 eruption using contour maps. We found that hiking boots are a great investment and the importance of making sure the GPS locations we plotted were accurate. We regrouped and discussed the use of GPS coordinates and how their uses have evolved so that scientists can accurately portray exact locations.

Contributed by the Phreatic Phoenixes

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