Dudh Kosi (Milk River) is a river in eastern Nepal. The river begins just east of Gokyo Lakes and flows south to Namche Bazaar where it meets ths Bhote Kosi . Continuing south, the Dudh Kosi exits Sagarmatha National Park and passes to the west of Lukla. The Lamding Khola joins the Dudh Kosi to the southwest of Surkya and continues its southerly course to the extreme southeast corner of Nepal.