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Environment | Oregon Field Guide

Disappearing Lake


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 botanist 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.

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Part of Episode

Disappearing Lake; Ice Crawlers; Mushrooms (2506)

Oregon Field Guide: Episode #2506
Most Recent Broadcast: November 14, 2013

Disappearing Lake, Bat Mystery, Jeff Douglas Remembered And Klamath Lake Canoe Trail (2812)

Oregon Field Guide: Episode #2812
Most Recent Broadcast: March 2, 2017