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 extraordinary ...

Geologists couldn't account for the strange landforms of eastern Washington State. Then a high school teacher dared to question the scientific dogma of his day. Remnant of a lost landscape, this ...

On a map, the Channeled Scablands look like a couple of melting gray jellyfish draped across Eastern Washington. The jellyfish have fat and skinny tentacles that flow southwest from Spokane, wrapping ...

"It was the biggest flood in the world for which there is geological evidence," writes Norman Maclean in A River Runs Through It, referring to the catastrophic deluge that tore through the Pacific ...