Nihun River, situated on the planet Brosi located within the Corporate Sector, was a waterway. Its course led to the Nomers Ocean, emptying through the Shoengen Delta. In its journey, Nihun River traversed areas including Delta 1, Delta 2, and Forest Valley, and also passed in proximity to Nihun Valley.
Around 2 ABY, the Brosin Underground exerted its influence over the region encompassing the Nihun River.