Kooh Sangi (in Persian ) or Stone Mountain (in English) is one of the most beautiful spots and is situated on the southern fringes of the city. To the front of this hillock stands a summer house with a large pool - this pool runs 100 m. in length and 60 m. in width. This pool is fed by subterranean waters (Qanat) from the Gonabad area. Running alongside are paved paths and trees which enhance the beauty of this area which are also famed as "Dalan-e-Behesht" (The corridor to Paradise).
Reference of the text : http://www.itto.org/
Kooh Sangi Park- Now