Travel.kg

The height of the Issyk-Kul Lake is 1800 meters above sea level and its depth is 700 meters. The difference between its height and depth is 1100 meters. It implies that the bottom of the Issyk-Kul Lake is approximately situated on the height of 1100 meters above sea level. Now let’s draw a line from Bishkek (that is about 700-900 meters about sea level) toward the bottom of Issyk-Kul. It will entirely match with the surface line of the Chui valley and it will go through Tokmak, Kemin and a little bit through the gorge right before Bohohm. What does it mean? It looks like that it used to be a large mountain valley, that started somewhere from Karakol or Tup. It passed trough the whole Chui valley then went to Karabalty and stretched further. Probably, some sort of disaster closed the valley near the current Balykchy town and that was how the barrier had been created which consequently resulted in emerging of the Issyk-Kul Lake.
Discussing further we can assume that
1) In early days a pretty large river had been flowing across the whole Chui valley, which is now blocked by the natural barrier in the area of Balykchy, or

2) It might be that the whole Chui valley had been covered by water until this large basin had been blocked in Balykchy.

Reasoning could be kept on. Why did I start these discourses? There are several reasons for that.
1) The Chui valley is very fertile

2) The Issyk-Kul cavity is rich of some sort mythical and natural findings that are well preserved.

I would love to hear some opinions and comments on this matter.