High Quality Content by WIKIPEDIA articles! Hadley–Apennine is a region on the near side of Earth`s Moon that served as the landing site for the American Apollo 15 mission in July 1971, the fourth manned landing on the Moon and the first of the "J-missions". The site is located on the eastern edge of Mare Imbrium on a lava plain known as Palus Putredinis. Hadley-Apennine is bordered by the Montes Apenninus (often referred to as `Apennine Front`), a mountain range, and Hadley Rille, a meandering channel, on the east and west, respectively.