(b) Gaul proper first enters ancient history when the Greek colony of Massilia was founded (?
The most important river is the Ili, which enters the province from Kulja and drains it for 250 m.
Before it enters Lake Balkash.
The Chu rises in the Tian-shan Mountains and flows north-westwards through Akmolinsk; and the Naryn flows south-westwards along a longitudinal valley of the Tian-shan, and enters Ferghana to join the Syr-darya.
At Avshin it enters a canon, with walls over l000 ft.