John and Charlie also collected several rusty-looking rocks with brown stains on their surfaces. These were exciting finds because the rusty appearance suggested the presence of hydrated oxides of iron. “Hydrated” meant water and the scientists had a serious interest in anything that could mean water had existed, or even still existed, on the Moon.
Flag Crater was so steep that if either one of them fell in, it would have been fatal! There was no rescue from the bottom of a big crater.
Charlie and John were startled by their landing spot. Much of the landing area was covered with rocks or had a steep slope. Fortunately, they had managed to land on the only level and smooth spot around.
“There you are, our mysterious and unknown Descartes Highlands Plains. Apollo 16 is gonna change your image.” John Young