"In the craggy terrain around the Moon’s south pole, the deepest craters dip 2.5 miles beneath the surface while the peaks reach as high as the highest mountain in North America — a 37,000-foot change of elevation. That’s a bigger swing of topography than exists on the entire surface of Earth.
...
“We now know the south pole has peaks as high as Mount McKinley and crater floors four times deeper than the Grand Canyon,” said Doug Cooke, a deputy associate administrator at NASA. The new data is “not scaring us away,” he said, adding: “It’s intriguing. It’s just enhanced our understanding of it.” "
NYT- Moon’s Craggiest
linked from instapundit