KPLU-FM: Amelia Templeton

Environment
3:32 am
Sun September 18, 2011

Documenting The Sound Of Fallen Trees (And Planes)

Crater Lake National Park in southern Oregon.
Amelia Templeton for NPR

Researchers at Crater Lake National Park in southern Oregon have spent the past two years documenting the park's natural sound. Often, microphones will pick up the sound of falling trees, elks snacking and coyotes howling.

In even the most remote parts of the park, however, researchers are also hearing airplane noise 15 percent of the time.

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