Alberton MT
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RECREATION During the most recent ice age, until about 13,000 years ago, water backed up through most of the valleys of western Montana, creating a lake nearly 2,000 feet deep at the ice dam. In time, the ice dam was undermined by water leakage and the growing depth and pressure of the lake water. It eventually weakened and then failed catastrophically. The lake drained unlashing catastrophic floods. This process repeated itself dozens of times in 48 hours until the lake was emptied. Float the river from Cinderella Mountain, when you are just outside of Alberton you can still see a vast bare sentinel of rock. As the lake drained down with the increasing turbulence coming out of the Missoula valley, Cinderella Mountain took the full force of the floodwaters. As the water slammed through the twisting river bends of the Alberton Gorge. This is where the floods took huge bites out of the mountainsides and tumbled rocks of all sizes downstream.
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