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How to Walk 1,000,000 Years on a Timeline at the Grand Canyon 

How to Walk 1,000,000 Years on a Timeline at the Grand Canyon 

2 thoughts on “How to Walk 1,000,000 Years on a Timeline at the Grand Canyon 

  1. Very interesting and educational. I like the wild shapes of those trees! And you guys are still representing the Blue. 👍😁

    1. You said it!

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