Map: Channeled Scablands WA - PNWRMS - 2018 Sacramento OHV/4WDriving

Map: Channeled Scablands WA - PNWRMS - 2018 Sacramento OHV/4WDrivingThe Channeled Scablands of Eastern Washington may be the states least well known yet most geologically fascinating region. The bizarre and somewhat barren landscape of today was shaped near the end of the last Ice Age (some 13,000 to 15,000 years ago), when an arm of the vast continental glacier that extended into northern Washington formed a natural barrier preventing the Clark Fork River in northern Idaho from emptying into what is now the Columbia

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