At the end of the last Ice Age, Lake Missoula had an outburst that was 2,500 times larger than the recent Catalina event. To understand these massive forces, we must study the largest outbursts ...

When Glacial Lake Missoula's ice dam shattered ... "coulees"—dry streambeds or gullies—all over what is now eastern Washington. Here, an old homestead sits in the bottom of a coulee within ...