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When the erruption of Mt. Saint Helens happened people reported seeing ash clouds as far as California going west and east as far as Wisconsin and south to Utah, Colorado, and Wyoming. This all factored to the way the wind was blowing which sent clouds of ash and soot blowing for miles and being spotted in different states.

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11y ago
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16y ago

Down rivers, through trails...you name it.

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13y ago

it had gone 10 states in with and 5 states in hight.spreading all the way to central united states.

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Q: How far did the ash from the 1980 Mount St Helen's eruption travel?
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