National Geographic News: Oldest Footprints

National Geographic News: Oldest Footprints
National Geographic News: Oldest Footprints
National Geographic News: Oldest Footprints
National Geographic News: Oldest Footprints
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National Geographic News: Oldest Footprints
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Diagram of trackway of previous photograph. The trackway indicates the course taken by the trackmaker and therefore his or her direction with respect to the slope. Scale bar=1 meter (39 inches)

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—Illustration by Paolo Mietto & Marco Avanzini
 

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National Geographic Traveler has scoured the globe for the world's most beautiful, interesting, and off-beat road trips. Dive in to get drive directions, quizzes, photos, and more.