***** PICNIC TABLE GEOLOGY PRESENTS *****
30-second seminars — by Some Guy
Hole-in-the-Wall – Mojave National Preserve
About 18.5 million years ago one day everything was blah, blah, blah and then all of a sudden . . . POOOM!
Hot, suffocating ash buried every living thing in the path of the blast. An area of over 600 km2 was covered with ash and rock fragments so hot that they welded together after they reached the ground. The toasted and fossilized remains of birds, mammals, and plants lie entombed beneath the volcanic tuff that forms the colorful cliffs of Hole-in-the-Wall.