Origin of the Blue Mountains studied

A U.S. study suggests northern Oregon's Blue Mountains may have originated from the Klamath Mountains of southern Oregon and the Sierra Nevada of California.

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<p><a href="http://www.physorg.com/news112988045.html">Origin of the Blue Mountains studied</a></p> <p>A U.S. study suggests northern Oregon's Blue Mountains may have originated from the Klamath Mountains of southern Oregon and the Sierra Nevada of California. </p>