The middle the middle and upper reaches of the Yellow River

upper and middle reaches area of the Yellow River

The middle the middle and upper reaches of the Yel

the middle and upper reaches of the Yangtze River

the middle reaches of the Yellow River

the upper reaches of the Yellow River

middle and upper reaches of the Yangtze River

middle reaches of the Yellow River

the area of middle reaches of Yellow River

the middle and upper reaches of Wujiang River

the middle reaches of Yellow River

the upper and middle Yellow River

upper and middle reaches of the Changjiang River

upper and middle reaches of the Yangtze River

the upper and middle reaches of Yarlung Zangbo Riv

the upper reaches of Yellow River

upper reaches of the Yellow River

chuanjiang region in upper and middle reaches of Y

historical floods in the middle reaches of the Yan