Location：In the upper reaches of the Yellow River, northwest China,
Neighboring Areas：nner Mongolian municipality, Qinghai provinces
Population：  Population of 23.7 million,
Area：450,000 square kilometers (173,700 square miles)
Local highlights：Herbal medicine

Introduction
Is a province.
History: Gansu is a compound name first used in Song Dynasty China, of two Sui and Tang Dynasty prefectures (州): Gan (around Zhangyi) and Su (around Jiuquan).
In prehistoric times, Gansu was host to a number of Neolithic cultures. The Dadiwan culture, from where numerous archaeologically significant artifacts have been excavated, flourished in the eastern end of Gansu from about 6000 BC to about 3000 BC [1]. The Majiayao culture and part of the Qijia culture also took root in Gansu from 3100 BC to 2700 BC and 2400 BC to 1900 BC respectively.
Economy: Agricultural production includes cotton, linseed oil, maize, melons (the Bailan melon is well known in China), millet, and wheat. Gansu is known as a source for wild medicinal herbs which are used in Chinese medicine.
Language: Most of the inhabitants of Gansu speak dialects of Northern Mandarin Chinese. On the border areas of Gansu you may hear Tu, Amdo Tibetan, Mongolian, and Kazakh. Most of the minorities also speak Chinese.

Culture
The cuisine of Gansu is based on the staple crops grown there: wheat, barley, millet, beans, and sweet potatoes. Within China, Gansu is known for its lamia (pulled noodles), and Muslim restaurants which feature authentic Gansu cuisine are common in most major Chinese cities.

Tourism
The Jiayuguan Pass of the Great Wall

Mogao Grottoes
Silk Road and Dunhuang City