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on the Descartes</image:title><image:caption>Astronaut John W. Young, Apollo 16 mission commander, drives the "Rover", Lunar Roving Vehicle (LRV) to its final parking place near the end of the third extravehicular activity (EVA-3) at the Descartes landing site. Astronaut Charles M. Duke Jr., Lunar Module pilot, took this photograph looking southward. The flank of Stone Mountain can be seen on the horizon at left. 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