江口峡谷忽上忽下流岭峡谷忽高忽低秦岭峡谷忽宽忽窄美丽的丹江俗称丹河,又称均水,亦称丹渊,发源于中国陕西蓝田县与商县之间分水岭西南侧,与渭水支流灞河同源而背流。东南经陕西商县、丹凤、山阳、商南4县,河南淅川、内乡2县境,于湖北丹江口市注入汉水,干流全长390千米,为汉江最长的支流,流域 Jiangkou Canyon suddenly go up and down the Ridge Canyon ravaged Qinling Canyon suddenly wide and narrow Narrow Danjiang River, commonly known as Dan River, also known as water, also known as Dan Yuan, originated in China’s Shaanxi Lantian County and Shangxian watershed between the southwest side , And Wei River tributary of the same source and back flow. Southeast of Shaanxi Shangxian County, Danfeng, Sanyo, Shangnan 4 counties, Henan Xichuan, Neixiang County 2, Danjiangkou in Hubei into the Han River, the total length of 390 km, the longest tributary of the Han River, the basin