The location chosen for building the fortification was in the Delhi plains (with an elevation range of , hemmed by the Yamuna River on one side and the northern spur of the Aravalli range of hills on the other side. This topography of the land area with the rock exposures at the Fort's location, with a favourable link with the northeast trending ridge and the main mosque (Jama Masjid), was visualised as an ideal setting that provided the needed protection against erosion by the Yamuna River. It was also obvious that a stream on one side and a mountain ridge on the other side of any fortification would be a formidable barrier for invaders to penetrate into Delhi, as such a setting would only force the invaders to follow the river course. Keeping these advantages in view the Salimgarh Fort was built in 1546.