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A huge stratovolcano covered in glaciers that is 70 miles away from Seattle serves as its anchor.
The park's most popular outing is a 3.7-mile hike up to Cascade Pass, which serves as a gateway to the famed Pacific Crest Trail and the Stehekin River Valley to the south.
One of the wettest ecosystems in the United States, it is best recognised for its expanses of old-growth temperate rainforest.
It is a special park that spans both a national and international border.
There is a lighthouse, a maze of windy trails, an old fort's ruins, and an amazing interpretative museum here.
The park has a cemetery, earthenware fortifications, military housing, and a brand-new tourist center.
The park offers extensive vistas of the Cascade Mountains and the Canadian Gulf Islands as well as lots of coastline to explore along Birch Bay.