Yaounde is the capital of Republic of Cameroon. It's the national center of politics, economy and culture. It's also the second largest city of the country. The urban area of Yaounde is 256 square kilometers and has a population of 1.92 million. It's located at the south part of hilly and mountain area in the middle part of Cameroon. Its urban area is distributed among 7 mountains. That's why people call it 'the city of 7 mountains'. The average elevation is about 750 meters. Sanaga River and Nyong River flow by the side of the city. Shenyang officially established sister city relationship with Yaounde on December 7, 1998.Yaounde is the 11th city who established sister city relationship with Shenyang.