• 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 - 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 and War Creek Trails are closed. More »

  • USFS closes Easy Pass Trail from State Route 20

    Due to fire activity near the trail, the US Forest Service has closed the Easy Pass trail and trailhead on State Route 20. This area has been receiving precipitation. The highway remains open.

Glaciers / Glacial Features

Nature and Science

Glacial ice is a unique and beautiful shade of blue.

Glaciers glisten as the most striking mountaintop feature of the North Cascades. Boasting over 300 glaciers and countless snowfields, the North Cascades National Park Service Complex is one of the snowiest places on earth and the most heavily glaciated area in the United States outside of Alaska. Glaciers form when more snow accumulates in winter than melts or evaporates during the following summer. As the snow compacts into ice, it slowly moves downhill. As glaciers move, they gouge and scrape the land redefining the landscape.
The North Cascades glaciers may be disappearing; most have shrunk dramatically during the last century. This is due to the combined effects of less precipitation and warmer summers, which most scientists now attribute to global warming. Glaciers mirror the trends of climate change, resulting in life changes through soil development and distribution of vegetation. Glaciers are indicators of climate changes such as temperature and precipitation. As reservoirs of snow from past winters, pollutants may wash into mountain lakes and streams where they enter the food chain. Salmon and other aquatic life, along with plant and animal life could encounter difficultiesand dramatic change as glaciers disappear.
 
 

Did You Know?

Long horned beetle

There are more insects in the Park than any other group of animals; in fact, 95% of all animal species on earth are insects. Take your time to explore the breathtaking world of butterflies, beetles, and bugs. More...