Oregon Field Guide

Disappearing Lake

Clip: Season 25 Episode 2506 | 6m 58s

South Prairie is a mysterious lake in the Gifford Pinchot National Forest that appears each spring and disappears each summer. We set out with a Forest Service botonist to paddle and hike this geologic wonder, trying to learn what's behind this phenomenon. The prairie is home to the world's largest-known population of a rare iris and some of the farthest west aspen groves in Washington.

Aired: 11/14/13

Rating: TV-G

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