These events are known as the Missoula Floods or the Scabland Floods. The most recent epoch of flooding lasted from ~20 to ~15 ka BP, and occurred when the Cordilleran Ice Sheet (CIS) was near its ...

When Glacial Lake Missoula's ice dam shattered, a northern arm of the lake drained in a matter of hours through a narrow gap in Montana's Blackfoot River valley. One can only imagine the ...

Water has been accumulating in the lake over the past 20 years, but it recently reached a critical point, causing the glacier to lift ... of the last Ice Age, Lake Missoula had an outburst that ...