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Bear Lake is a tectonic lake that has existed for at least several hundred thousand years. The lake basin is a relatively simple half graben, a spoon-shaped depression tilted toward the main fault on the east side of the lake. The U.S. Geological Survey, in cooperation with researchers from several universities, has been studying the sediments of Bear Lake since 1996. The general purpose of this effort is to reconstruct past limnological conditions and regional climate on a range of timescales, from hundreds of years to hundreds of thousands of years. This research relates to a variety of human concerns, including water usage in the Bear River basin. Past work has included several coring operations, a seismic-reflection...


    map background search result map search result map Geophysical Surveys of Bear Lake, Utah-Idaho, September 2002: JPEG images of seismic data Geophysical Surveys of Bear Lake, Utah-Idaho, September 2002: JPEG images of seismic data