Video ID: es2039 Title: Upper Popo Agie Falls, Wyoming Location: Sinks Canyon, Lander, Wyoming

In this sequence, the changing volume of the two waterfalls as they flow out over rock and into the pool below reveal the constant pulse and fluctuations of natural, uncontrolled water.

The patterns of the falls are contrasted with the more dynamic, linked shadow-patterns of the wind-blown aspens on the foreground rocks.

Occasional birds and insects and a cameo chipmunk appearance add yet another even more random pattern of life in the mountains.