Wednesday, June 11, 2014

Yellowstone: Mammoth Hot Springs to Fishing Bridge

Pronghorn

Forget-me-not

Protected petrified tree. 
There are fossil forests, with trees like this one, standing in remote parts of the park, created by volcanism and ash maybe a million years ago, when cell tissue was replaced with minerals. Much more recently a fossilized tree is revealed by erosion.

1 comment:

  1. The petrified tree's fascinating!

    Breathtaking views.

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