GUMUSH-KHANEH, the chief town of a vilayet of the same name in Asiatic Turkey, situated on high ground (4,40o ft.) in the valley of the Kharshut Su, about m. S. of the Trebizond Erzerum chaussee. The silver mines from which the place takes its name were noted in ancient times and are mentioned by Marco Polo. Pop. (1927) 23,863