Ape Cave Geologic Site

Thought to be the longest lava tube in the Western Hemisphere, the 12,810-foot tunnel was found within a massive lava flow that oozed from the volcano almost 2,000 years ago. Flowing downhill, the stream of lava cooled and formed a hard crust atop the hot lava. In time the lava drained and left an intricate, winding lava cave behind.

The cave was first explored in 1946 by the St. Helens Apes - the local Boy Scout troop for whom the cave is named.

Visitors should have three light sources, sturdy shoes and a jacket; the temperature is about 42 degrees Farenheit.

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The Most Anticipated Upcoming Washington Events Are: Christmas at the Fort Vancouver December 12 Lighted Boat Parade and Crab Pot Christmas Tree Ilwaco December 5 Christmas in the Country Bainbridge Island December 4 thru December 6 Lantern Tours at the Fort Vancouver continuing Fireworks At Midnight over the Ocean Long Beach December 31

Other upcoming events include: Lighted Christmas Parade Lynden December 5 Holiday Home Tour Peninsula December 13 Winter Boat Expo Pasco February 4 thru February 7 Vancouver USA Singers Performance Camas February 13 thru February 14 Strawberry Mountain Salon Christmas Open House Goldendale December 4