Showing posts with label dark. Show all posts
Showing posts with label dark. Show all posts

Tuesday, November 30, 2021

Lava tubes of the American West

Two Tubes, Ape Cave, Washington

The American West is home to about a dozen majestic volcanoes. Most of the time we appreciate their towering summits. But what’s underground can be every bit as spectacular.

The volcanoes don’t erupt that often. Only one — Mount St. Helens — has erupted during my lifetime. But occasionally they erupt in such a way that produces dramatic caves, called lava tubes. One of my projects this year was to explore more of them.