Hadley Rille is a channel-like feature on the Moon at the edge of the Apennine Mountains.
Although it looks like a dry river bed, it's actually a collapsed lava tube. The valley where Apollo 15
landed, near Hadley Delta, is one of the most scenic places on the Moon. The Rille is over 300
meters deep and almost two kilometers wide.
Hadley Rille from lunar orbit. Apollo 15 landed just below and to the right of the "elbow."
Photo credit: NASA, AS15-85-11451 (H).
Astronaut Jim Irwin with the Lunar Rover near the edge of Hadley Rille.
Photo credit: NASA, AS15-11720 (H).
