Bandhavgarh is densely populated with other species: the great gaur, or Indian bison, can be seen with ease, as they come onto the meadows to graze at dusk; sambar and barking deer are a common sight and nigai are to be seen in the more open areas of the park. The terrain is of great rocky hills rising sharply from the swampy and densely-forested valley bottoms. The finest of these hills is Bandhavgarh, sided with great cliffs and eroded rocks and on its highest point stands Bandhavgarh fort, thought to be some 2,000 years old.