Lanzhou Tour is prepared here for who want to start there tour in Gansu from here. As the capital city of Gansu Province, Lanzhou is the second largest city in the northwest area of China. The city covers a total area of 13,000 square kilometers with a population of 2.58 million. The city's land features include valleys, basins, hills, and gully areas. It also served as an important garrison along the Silk Road. Lanzhou has a mild climate with average temperatures between 23 and 32 degrees Celsius in June-July and elevation around 1000--2000 meters above the sea level. The Yellow River is flowing through the whole city.