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The Secret Life of River Stones
6:00
Tip: press play to see the sound's live frequency spectrum in blue over the waveform.
About this sound
Unlock the hidden geologic mysteries of river stones with Park Ranger Robin Hampton as she reads an article written by Park Ranger Barb Graves for the park's Nature Notes.
Why parks record sound
The NPS Natural Sounds and Night Skies Division monitors soundscapes in parks across the United States. Natural quiet is treated as a resource to protect, like clean air or dark skies: noise from aircraft, vehicles and machinery can mask animal communication and change the experience of a place.
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Sources & credits
- The Secret Life of River Stones by US National Park Service – Public domain