Pine beetles killing Crater Lake's signature tree

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Crater Lake Pine Beetles
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Crater Lake Pine Beetles
FILE - In this Sept. 8, 2009 file photo, U.S. Forest Service District Ranger Bill Gamble shows tunnels bored by mountain pine beetles in a tree on the shores of Diamond Lake, Ore. The latest periodic mountain pile beetle infestation is waning in Oregon, but not before becoming the biggest source of mortality for the signature tree at nearby Crater Lake National Park, the whitebark pine. (AP Photo/Jeff Barnard, File)