Mt. St. Helens Above Ground, viewpoint from the South
Ape Cave is a 2,00 year old lava tube that was formed by a basalt lava flow from a vent on the southern flank of Mt. St. Helens. From Mt. Rainier, we drove South to Columbia River Gorge in Oregon. Coming from the North, the visibility was very poor because of fogs and very clouds. We did not have a glimpse of Mt. St. Helens at all even at their view points from the North and West side of Mt. St. Helens.
@ the mouth of Ape Cave Lava Tube, Mt. St. Helens National Volcanic National Monument
If above ground was all foggy, we went below ground then at Ape Cave. Ape Cave Lava Tube is in the south side of Mt. St. Helens. It is the longest lava tube (12,810 ft ) in the contiguous US. Last summer 2009, we also hiked in a similar lava tube cave in California, which is Subway Cave near Lassen Volcanic National Park.
close to the entrance of Ape Cave
Exploring Ape Cave
It was not only dark inside Ape Cave, but it was also chilly and breezy, with a temperature averaging 42 degrees Fahrenheit ( 5.5 degree Celsius). We went down several flight of stairs inside the cave.After Ape Cave, we continued our journey South to Columbia River Gorge. Surprisingly, if we did not get a glimpse of Mt. St. Helens at the North and West side, we finally got a glimpse of Mt. St. Helens when we were further South.
Mt. St. Helens from the South
It was a big treat for us to be able to see a day as clear as this, when the past 2 days where gloomy for us. And if felt so great to be able to see what is underneath Mt. St. Helens as well at Ape Cave Lava Tube.