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In between visiting the south and north rim of the Grand Canyon, I stayed overnight in Tuba City. Close to there are some dinosaur tracks. I doubt that I would have been able to figure all that you could infer from the various marks in the ground if it hadn't been for a Native American lady who had a stand selling jewelry there, but who was happy to give me a tour. This track depicts the bestiary of creatures that roamed the area, tens of millions of years ago.