Geologic Wonders
Mount St. Helens National Volcanic Monument & District
The Mount St. Helens National Volcanic Monument and District contains many wonderful places to see and explore. Look for trails, interpretive sites, and more.
Ape Cave Interpretive Site
Ape Cave is the third longest lava tube (2.5 miles long) in North America and cave temperature is 42 degrees F/5.6 degrees C year-round.
Ice Cave
Ice Cave is a popular 650 foot long cave that has a beautiful display of ice stalactites and ice stalagmites early in the season.
Coldwater Lake Picnic and Boating Area
Experience the effect the May 18, 1980 eruption had on the Coldwater Valley, including creating a brand-new lake.