Manaranjan fort is one of the two hill fort

Hill fort

A hill fort is a type of earthworks used as a fortified refuge or defended settlement, located to exploit a rise in elevation for defensive advantage. They are typically European and of the Bronze and Iron Ages. Some were used in the post-Roman period...

s that constitute the Rajmachi fortification, the other being Shrivardhan fort

Shrivardhan fort

Shrivardhan fort is one of the two hill forts that constitute the Rajmachi fortification, the other being Manaranjan fort. It is located in Rajmachi village which 8.5 km from Lonavala in the Sahyadris mountain range. At 900 m above sea level it was the taller of the two peaks. Other than a...

. It is located in Rajmachi

Rajmachi

Rajmachi is a small village in the rugged mountains of Sahyadri in India. There are two forts which were built by Emperor Shivaji during 17th century. It is a famous spot for trekking.It is about 15 km treking distance from Lonavala....

 village which 8.5 km from Lonavala in the Sahyadris mountain range. Manaranjan fort is 2700 feet high which makes it lower than the neighbouring Shreevardhan fort. It has three gates and large ramparts. From here Karnala fort can be seen. There are some water tanks at the summit.