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Postal Code: 98020
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The Olympic Mountains
historicalmarkerproject/markers/HM1FFH_the-olympic-mountains_Edmonds-WA.html
The Olympic Mountains began life 35 million years ago as part of the ancient sea floor that thrust against the North American plate. Inexorable geologic forces fractured and folded these layers of rock and lifted them high into the air. Erosion an…
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