Mother Nature’s version of the old “Paper, Rock, Scissors” game might be called “Water, Rock, Wind”.  And in that game, water has an advantage.  These images from Zion National Park in Utah are of a little pipeline of water carved over the eons into the sandstone stream bottom. With a long exposure, the flow looks like a stream of milk, almost.

Crack in North Creek

Water flowing through crack in sandstone creek bed, North Creek, Zion National Park, Utah, USA. Canon 1Ds Mark II. 31mm. ISO 50.  5 sec. at f/22.