GeoGirls explore the Ape Cave lava tube
![6 people in dark cave looking at wall. Leader holding bright lantern](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/ApeCave_IMG_0403.jpg?itok=xk4293O-)
Detailed Description
At Mount St. Helens, the GeoGirls explore the Ape Cave lava tube and learn how to interpret the layers left in the rock wall.
At Mount St. Helens, the GeoGirls explore the Ape Cave lava tube and learn how to interpret the layers left in the rock wall.