The Hadley-Apennine region is a prominent area on the Moon, located near the lunar equator. It features a mix of rugged highlands and smooth plains, shaped by ancient volcanic activity and impacts from asteroids. The region is known for its unique geological formations, including craters and rilles. This area is significant for lunar exploration, as it is home to the Apollo 15 landing site. The mission, which took place in 1971, focused on studying the geology of the Hadley-Apennine region and provided valuable insights into the Moon's history and formation.