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Left: Sandbars in the Chena and Tanana Rivers. Inset: Spruce trees along the Chena River, some leaning at crazy angles. In Denali:A Living Tapestry, author Andromeda Romano-Lax describes "Drunken" trees, "a phenomenon caused by the freezing and thawing of the discontinuous permafrost--pockets of frozen ground--inches below the forest floor." Sandbars, ever changing navigation hazards, require that riverboat pilots constantly study the shifting bottoms of the Chena and Tanana Rivers. "Web Site Homepage or Alaska Vacation Main Page or Previous or Next |
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