At the end of the last Ice Age, Lake Missoula had an outburst that was ... "In this case, the energy released by the glacier flood was equivalent to the output of the world's largest nuclear ...

The size of Glacial Lake Missoula varied from one filling to the next, depending on how thick the ice dam was. After each flood, the glacier would once again advance, sometimes thicker ...

Towering cliffs carved by the Missoula megafloods are found throughout the Channeled Scablands in eastern Washington. (Photo by Tamara Pico) The landforms on the Columbia Plateau in eastern Washington ...