Harihar Fort is, located in Igatpuri region of Western Ghats
. Situated at an altitude of about 3, 676 ft above sea level, this unique fort is built on a triangular prism of rock. The three faces and two edges of the fort are completely vertical. Rocky steps with one meter wide at an angle of about 75 degrees are also found here. A small temple and a cave with water, situated on the top, are worth visiting. Utwad and Basgad fort can be easily accessed from the base of this fort.