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宁蒗彝族自治县地处康藏高原南端。横断山脉中部,高峻雄伟的绵绵山脉纵贯全县。县境东部为中山山原地貌,西部为金沙江高山峡谷地貌。县内最低海拔1370米,最高4514米,相对高差3140米。金沙江在县内流程长达100.5公里。县内所有河流均汇入金沙江与雅砻江两大水系。东部为雅砻江水系,主要支流为永宁河和宁蒗河。径流面积2546平方公里,占全县径流面积的42.3％;西部为金沙江水系,支流有碧源河、拖脚河、子补河、金棉河、库脚河、
Ninglang Yi Autonomous County is located in the southern end of the Tibetan Plateau. Traverse the middle of the mountains, tall and majestic mountain range runs through the county. The eastern part of the county is the mountain landform in the mountains, while the western part is the mountainous canyon in the Jinsha River. The lowest elevation of 1370 meters in the county, the highest 4514 meters, the relative elevation of 3140 meters. Jinsha River in the county process up to 100.5 kilometers. All rivers in the county are remitted to the Jinsha River and Yalong River two major water systems. The eastern Yalong River system, the main tributaries of Yongning River and Ninglang River. Runoff area of 2546 square kilometers, accounting for 42.3% of the county runoff area; west of the Jinsha River, tributaries of the Biyuan River, Trachomao River, Zi River, Jinmian River, reservoir foot River,