Siyin is a village in Kale Township, Kale District, in the Sagaing Region of western Burma."1:250,000 topographic map, Series U542, Mawlaik, Burma; India, NF 46-3" U.S. Army Map Service, March 1960 It is located about GeoNames.org west of Kalemyo on the Kalemyo – Theizang road. It lies at the mouth of the Siyin Valley where it debouches into the Kale Valley.