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

    North Cascades

    National Park Washington

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  • 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 »

  • USFS Access Road and Trail Closures

    The following USFS trails providing backcountry access to the park service complex are closed due to Lone Mountain and Carlton Complex Fires: Twisp Pass, South Creek, Reynolds Creek, War Creek, Summit. The Twisp River Road is closed west of Eagle Creek. More »

Acoustic Monitoring Site: Ross Dam Trailhead

Winter monitoring site at Ross Dam. Image Credit: NPS/NOCA
Winter monitoring site at Ross Dam.
NPS/NOCA
 

February 2010
Attempting to capture the sounds of winter use on Highway 20, a winter site was deployed above the Ross Dam trailhead, past the road closure gate. In a winter of very little snow, the usual snowmobile noise was absent. The phone at the Seattle City Light operated dam below echoes across the valley, along with gunshots.

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

 
 
 

Did You Know?

Cascading stream

The North Cascades are well known for the abundant waterfalls that lace the mountains. Two of the best known waterfalls are Gorge Falls between Newhalem and Diablo along State Route 20 and Rainbow Falls in the Stehekin Valley.