Built over ten years from 1540 by Sher Shah Suri, the fort is one of the
most imposing historical monuments in Punjab. It is situated on the edge
of the Kahan Gorge, which provided the only route from
the mountainous country north of the
Salt Range, to the southern plains. A 5km perimeter wall, with massive
battlements, bastions and gates encircles the fort. The fort's
perimeters were designed strategically to utilise the natural ravines,
which, together with about a kilometre of the riverside, act as natural
moats for the defensive system.