Kalavantin Durg near Panvel, India
Prabalgad is a fort located between Matheran and Panvel, visible from the Mumbai Pune expressway. The fort is located at an elevation of 2300 feet in the Sahyadri mountains. It is located on a plateau very close to Matheran, but unlike Matheran Prabalgad fort does not have a good source of water supply. It was known as Muranjan until it was taken over and renamed by the Maratha forces under Shivaji's rule. The fort has a sister fort, Irshalgad.