Frazil Ice

In as odd phenomenon at Yosemite Falls, the mist generated from the waterfall forms ice in the upper, cooler atmosphere at night and falls with the water making a slushy mixture called frazil ice. This slush causes some dynamic changes in Yosemite creek mimiking lava flows in that it flows, blocks up, and then spreads around. Nature is such a beautiful and mysterious thing.

- via wimp

From the Upcoming ueue, submitted by sshuggi.