[1] The trapezoid-shaped basalt lava outcropping, located 30 km southwest of the town of Zabol, rises to 609 meters above sea level and has a diameter ranging from 2.0 to 2.5 kilometres.

On the southern promontory of the eastern slope, the ruins of a citadel complex - known as the Ghagha-Shahr - with its remains of a fire temple date to pre-Islamic Iran.

In Zoroastrian eschatology, when the final renovation of the world is near, maidens will enter the lake and then give birth to the saoshyans, the saviours of humankind.

The site was later excavated by Ernst Herzfeld, and was again investigated in part by Giorgio Gullini in a short expedition of 1960.

Beyond the citadel at the top of the plateau are several other unrelated buildings, of uncertain function and probably dating to the Islamic period.