Xiaonanhai Dam total of 338 freshwater fish species have been identified on the Yangtze. 189 live in the area — currently a preservation — and many of those are found in no other river basin in China. An official study by the Yangtze River Commission in 2003 concluded that the Xiaonanhai dam could not be recommended due to its "unremarkable economic returns". According to "Chongqing Daily", project cost per-kilowatt is triple that compared with other projects along the Yangtze: with total investment estimated at ¥32 billion, the project will cost ¥16,000 per-kilowatt of capacity, whereas the Three Gorges dam, Xiluodu Dam and
Ziz Gorges caravan trading route between settlements of the northern Sahara. In the 1st century, the Roman general Gaius Suetonius Paulinus crossed through them while leading troops across the Atlas Mountains. Ziz Gorges The Ziz Gorges are a series of gorges in Morocco on the upper course of the Ziz River. They are defined by two gates at the southern and northern ends. At the southern end is the Hassan Addakil dam and lake. Nearby is the Tunnel de Légionnaire built by French colonial troops in the 1930s in order to create a passageway to the Ziz Gorge. The gorge was formed