• View from Sourdough Mountain Overlook  A view looking down onto Diablo Lake. Photo Credit: NPS/Michael Silverman, 2010.

    North Cascades

    National Park Washington

Acoustic Monitoring Site: Colonial Campground

Acoustic monitoring station near Colonial Creek. Image Credit: NPS/NOCA
Acoustic monitoring station near Colonial Creek Campground.
NPS/NOCA
 

August 2009
In the midst of a busy campground, sounds of the highway and campers filled the air. Rare natural sounds such as the faint call of a spotted owl intermingle with the slamming of car doors and barking dogs.

Click each title to hear a sound recording. Click on "Sound Clips" in the navigation to return to the map.

 
 
 
 
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