雅砻江又名若水,打冲江、小金沙江,藏语叫尼亚曲,意为多鱼之水。雅砻江发源于青海省尼产纳玛克山与各拉岗山之间,上源叫扎曲,流到甲衣寺后称雅砻江。河流总的是自北向南流,到理塘河口,河流急转约140度,变为向北东流,到九龙河口下游18公里处,河流又急转180度,变为由北向南流,形成著名的雅砻江大河湾,到渡口市的倮倮注入金沙江,系金沙江的最大支流。干流长1368公里,天然落差3180米,平均比降2.32‰。干流长,支流短,流域面积大于100平方公里的支流有290条。其中流域面积 Yalong River, also known as the water, hit the river, Jinsha River, Tibetan called Niyaqu, meaning more fish. Yalong River originated in Qinghai Province, Namib Namak Hill and between each of Mount Ragang, on the source is Zhaqu, flows to the Temple after the Yalong River. The river is always from north to south, to Litang estuary, the river sharply about 140 degrees into a north-east flow to 18 km downstream Jiulonghekou, the river and 180 degrees sharp turn into a north-south flow, The formation of the famous Yalong River Bay, the ferry into the Jinsha Ferry, the largest tributary of the Jinsha River. The main stream is 1368 kilometers long, with a natural drop of 3180 meters, with an average drop of 2.32 ‰. The main stream is long and the tributaries are short. There are 290 tributaries whose catchment area is more than 100 square kilometers. Which basin area