| Missoula Flood Deposits |
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| Up to
30 m thick in the |
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| northern
valley. |
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| Deposited
in as many as 40 |
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| beds
up to 2 m thick. |
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| Deposited
between 15-12 ka. |
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| Contains
ice-rafted erratics. |
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| Jim
O’Connor, 2003 |