Metemma, also known as Metemma Yohannes, is a town in northwestern Ethiopia, on the border with Sudan. Located in the Semien Gondar Z…Metemma, also known as Metemma Yohannes, is a town in northwestern Ethiopia, on the border with Sudan. Located in the Semien Gondar Zone of the Amhara Region, Metemma has a latitude and longitude of 12°58′N 36°12′E / 12.967°N 36.200°E with an elevation of 685 meters above sea level. Across the border is the corresponding Sudanese village of Gallabat.