One of the most interesting geographical centres from which to take off is Herat, and it may be instructive to note what is said about Herat itself and its connections with the Oxus and Seistan. Herat, says Idrisi, is "great and flourishing, it is defended inside by a citadel, and is surrounded outside by 'faubourgs.' It has many gates of wood clamped with iron, with the exception of the Babsari gate, which is entirely of iron. The Grand Mosque of the town is in the midst of the bazaars.... Herat is the central point between Khorasan, Seistan, and Fars." Ibn Haukel (tenth century) mentions a gate called the Darwaza Kushk, which is evidence that Kushk was of importance in those days, though no separate mention is made of that place; and he adds that the iron gate was the Balkh gate, and was in the midst of the city. The strategical value of the position was clearly recognized.
That grand edifice, the Mosalla, with its mosques and minars, which stood outside the walls of Herat and was the glory of the town in 1883 (when it was destroyed in the interests of military defence), had no previous existence in any other form than that which was given it when it was built in the twelfth century.
Both Ibn Haukel and Idrisi mention a mountain about six miles from Herat, from which stone was taken for paving (or mill-stones), where there was neither grass nor wood, but where was a place (in Ibn Haukel's time, but not mentioned by Idrisi) "inhabited, called Sakah, with a temple or Church of Christians." Idrisi says this mountain was "on the road to Balkh, in the direction of Asfaran." This would seem to indicate that Asfaran, "on the road to Balkh," must be Parana (or Parwana), an important position about a day's march north of Herat. Ibn Haukel says nothing about the road to Balkh, which can only be northward from Herat, but merely mentions that the mountain was on the desert or uncultivated side of Herat, where was a river which had to be crossed by a bridge. This could only be _south_ of Herat. Asfaran is also stated to be on the road to _Seistan_ and to have had four places dependent on it, one of which was Adraskand; and the route to Asfaran from Herat is further described as three days' journey (Idrisi). Ibn Haukel also describes Asfaran as possessing four dependent towns, and places it between Farah and Herat, or _south_ of Herat. As Adraskand[6] is a well-known place between Herat and Farah, we must assume that this is either another Asfaran, or that Idrisi has made a mistake in copying Ibn Haukel. It might possibly be represented by Parah, twenty-five miles south-west of Herat, although the limited area of cultivable ground around renders this unlikely. Subzawar would indicate a far more promising position for an important trade centre such as Asfaran must have been, and would accord better with the three days' journey from Herat of Idrisi, or the itinerary from Farah given by Ibn Haukel, while the extensive ruins around testify to its antiquity. Asfaran was almost certainly Subzawar.