• 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: Newhalem

Newhalem-area acoustic monitoring. Image Credit: NPS/NOCA
Newhalem-area acoustic monitoring.
NOCA/NPS Staff
 

July 2009
The Newhalem site was located approximately 100 feet above the highway corridor at the edge of the Seattle City Light company town. Highway noises along with noises from the town are easily heard since the sounds are bounced off the steep cliffs.

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

 
Siren
Siren
 
Train Bell
"Old No. 6" Bell
 
Miltary Jet

Military Jet Overflight

 
Motorcycle

Motorcycles on State Route 20

 
Brushcutter

Brushcutter

Did You Know?

Did You Know?

Stephen Mather Wilderness comprises 93% of the North Cascades National Park Service Complex. About 400 miles of trail provide access to this rugged Wilderness.