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Figure 18. Evidence for subsidence of coastal southwestern Washington. A g host forest of cedar snags protrudes through an intertidal marsh along the Copalis River. T he man is standing on roots that mark the present level of the ghost forest floor. The forest was kill ed after being suddenly dropped into the intertidal zone about 3 00 years ago, perhaps at the same time as the subsidence of the marshland shown in Fig. 17. (Photo by B. F. Atwater)

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Next figure-- Previous figure-- Table of Contents-- Pacific Northwest Earthquakes

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