The middle the middle and upper reaches of the Yel
The middle the middle and upper reaches of the Yellow River
the middle Yellow River
Steplike hydropower stations in the upper Yellow River
The Yellow River upper stream
water diversion from the upper Yangtze River in the south to the upper Yellow River in the north
historical floods in the middle reaches of the Yan
human activity in the middle reaches
In the middle reaches of Hanjiang River
middle of the Yellow River
Middle reach of the Yellow River
middle reaches of the Yellow River
summer rainfall over the middle reaches of the Yangtze River
the middle reach of the Yellow River
the middle reaches of Changjiang River
the middle reaches of Han River
the middle reaches of Hanjiang River