Big Four Ice Caves, Washington: One of the most popular attractions in Mount Baker-Snoqualmie National Forest, and only a short drive from Seattle, these caves are formed in a perennial pile of avalanche debris on the north face of Big Four Mountain which is kept from melting by the mountain's shadow. Streams formed by the summer melt carve the caves out of the ice..

Spectacular ice caves you can visit year-round

Big Four Ice Caves, Washington: One of the most popular attractions in Mount Baker-Snoqualmie National Forest, and only a short drive from Seattle, these caves are formed in a perennial pile of avalanche debris on the north face of Big Four Mountain which is kept from melting by the mountain's shadow. Streams formed by the summer melt carve the caves out of the ice..

Hiking the Big Four Ice Caves, Washington

Hiking the Big Four Ice Caves, Washington

The Big Four Ice Caves in the Cascade Range, located 21 miles east of Granite Falls, Washington, feature a network of tunnels formed from avalanche-deposited snow and are hollowed by cascading water and warm winds

NatGeo’s photo assignment to the public: Explore Our Changing World

The Big Four Ice Caves in the Cascade Range, located 21 miles east of Granite Falls, Washington, feature a network of tunnels formed from avalanche-deposited snow and are hollowed by cascading water and warm winds

Big Four Ice Caves near Granite Falls, WA Way too dangerous to do what that guy is doing! Too many people killed.

Washington Caves ( The Big Four Ice Caves )

Big Four Ice Caves near Granite Falls, WA Way too dangerous to do what that guy is doing! Too many people killed.

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