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

    North Cascades

    National Park Washington

There are park alerts in effect.
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  • Cascade River Road will be open as normal through fall/winter 2014

    Cascade River Rd. will be open in 2014 until snow conditions make it impassable to vehicles, as normal. The road closure that was planned to begin September 8 has been postponed beyond 2014 due to unforeseen circumstances. More »

  • Lone Mountain Fire - National Park Service Trail Closures

    The Lone Mountain Fire in North Cascades National Park is approximately 5 mi NW of Stehekin in the Boulder Creek drainage. Boulder Creek Trail is closed. More »

  • Re-opening of Adjacent U.S. Forest Service Road and Trails that Access North Cascades NP Complex

    The area closure of the Twisp River Road and the Lake Chelan-Sawtooth Wilderness in the Okanogan-Wenatchee National Forest due to wildfires has been lifted as of August 19, 2014. More »

Acoustic Monitoring Site: Thunder Knob

Monitoring team on Thunder Knob. Image Credit: NPS/NOCA
Monitoring team on Thunder Knob.
NPS/NOCA
 

June 2010
Located near a popular day hiking trail, this site was a mix of front country and backcountry. The highway is just a mile below, and vehicle traffic is frequently audible. However, this site is not without natural sounds as well. The sound of a nighthawk performing his dive was audible here.

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

 
 
 
 

Did You Know?

Did You Know?

North Cascades NPSC has over 300 glaciers, more than any other park in the lower 48 states. More than half the glaciers in the 48 states are concentrated in this mountainous wilderness region called the North Cascades.