We can only infer from the colossal character of the earth-works which surround the modern town, that, like the similar remains at Bost on the Helmund and at Ulan Robat of Arachosia, they belong to that period of Central-Asian history which preceded the rise of Achaemenian power, and which in Grecian romance is illustrated by the names of Bacchus, of Hercules and of Semiramis.
The Bavarian army comprises sixty-seven battalions of infantry, two battalions of rifles, ten regiments of cavalry (two heavy, two Ulan and six Chevauxlegers), a squadron of mounted infantry (JÃger-zu-pferde), twelve field and two foot-artillery regiments, three battalions of engineers, three of army service, and a balloon section; in all 60,000 men with 10,000 horses.
The ruins at Ulan Rob At, supposed to represent the city Arachosia, are in its basin; and the lake known as Ab-i-Istada, the most probable representative of Lake Arachotus, is near the head of the Tarnak, though not communicating with it.
In the valley of the Tarnak are the ruins of a great city (Ulan Robat) supposed to be the ancient Arachosia.
Passes across the range are few and difficult, the chief being the Ulan-daban at 9275 ft.