Sonemuda is the place of origin of the Sone River. It is 1.5 km from Narmadakund at the very edge of Maikal Mountain. The Sone River cascades from the mountain in a waterfall hundreds of feet long. From the viewing platform facing east, there is a panorama of forested hills and valleys. According to Megasthanes and other Aryan writers the river Sone gets its name from gold as gold dust is found in the water of Sone.