• 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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  • State Route 20 closed at Mile Post 134, Ross Dam

    After a brief closure at Newhalem due to an avalanche and unstable conditions, SR 20 has re-opened to its normal winter closure point at MP 134, Ross Dam. The highway will remain closed from Ross Dam to MP 171 (Silver Star Creek) until spring re-opening. More »

  • Ross Dam Haul Road Closure Continues

    A short segment of the Ross Dam Haul Road between the Diablo Lake suspension bridge and the tunnel remains closed to public use due to continued recovery following a March 2010 landslide. The closure will remain in effect through 2014. More »

  • Notice of planned work for the Cascade River Road, fall 2014

    Visitors planning to access the park via the Cascade River Road after Labor Day should be advised that the Park Service is planning a fall closure of this road at Eldorado Creek (3 miles before the end of the road) in order to perform permanent repairs. More »

Ferns

Ferns thrive in the low light and high moisture forests of the North Cascades. Sword, deer, licorice, lace, parsley, maidenhair, bracken, lady, oak and wood ferns dapple the forest floor.

These ancient plants have been living on this planet for more than 300 million years. Ferns dominated the plant world until flowering plants emerged during the age of dinosaurs. They have internal tubes for transporting water and nutrients, without which, a plant cannot grow more than a few inches tall. Ferns have two distinguishing characteristics: they reproduce by spores (visible in small clusters called sori on the underside of leaves) and their leaves unroll from base to tip as they mature (resulting in a fiddlehead appearance).

What image of the Pacific Northwest would be complete without the forest floor covered in lush, green ferns? As you walk through the woods of the North Cascades you will discover that in moist places ferns dominate the understory. Walking amongst the fronds, what you are actually viewing are the leaves of the plant, which grow out of horizontal, underground stems called rhizomes.

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.