The  Iron Hill  is a population, a hill and  natural monument  located in the north of the  province of Seville , about 5 km south of San Nicolás del Puerto  along the constantine road  and within the Sierra Norte de Sevilla Natural Park.

It is an area  of rock  limestone  rich in minerals  iron ,  which was exploited as  mine  since before the  romans  until the middle of  20th century , which is now declared  natural monument  for its value  geological  and landscape and where hiking is practiced  and the  climbing . The old mining town remains as  village  of few inhabitants dependent on  Saint Nicholas of the Port .