Gejiu City

Gejiu 个旧市
County-level city
Gejiu from the southeast
Gejiu Location within China
Coordinates: 23°22′N 103°09′E / 23.367°N 103.150°E / 23.367; 103.150
Country	China
Province	Yunnan
Prefecture	Honghe
Area
• Total	1,587 km2 (613 sq mi)
Population
• Total	390,000
• Density	250/km2 (640/sq mi)
Postal code	661000
Area code(s)	0873
Website	http://www.gjjw.gov.cn/

 Gejiu  (个旧; Hani: Goqjef; Wade-Giles: Ko-Chiu; formerly known as Kotchiu) is a county-level city and the former capital of Honghe prefecture, Yunnan Province, China, and has 136,000 inhabitants (ranked 5th largest city in Yunnan). It is the site of the country's largest tin deposits and its main industry is mining.

Gejiu is located on top of a mountain to the north of the Red River (pinyin Hong He) valley, which flows from Yunnan, Dali prefecture to Vietnam. To the south-west in this valley is Nansha, which lies directly below the town of Yuanyang. To the north-west lies Jianshui, and to the north Jijie. Mengzi lies 12 miles to the East.

The town is located in a crater-like depression around a lake on top of a mountain. The main road enters the town from the north through a thin pass. To the east and west are steep cliffs. Those to the west are too steep to inhabit, however extensive new construction along the eastern side has created many new districts.