Hadley-Apennine is located west of the Montes Apenninus and east of Hadley Rille. The Apennine mountains form a escarpment that rises higher above the Hadley plain than the Himalayan front above the plains of India and Nepal. Hadley Rille (also referred to as Rima Hadley) is located to the west of the Apollo 15 landing site and was the subject of substantial investigation during that mission. The feature, named from nearby Mons Hadley, is a channel that was likely formed by volcanic processes earlier in the history of the Moon.