Introduction to Ganzhou: Ganzhou District is located in the hinterland of Qianlihe West Corridor, the intersection of the ancient "Silk Road" and the "Jianyan Ancient Road", the South Pillow Qilian Mountain, the North Yiheli, the Longshou Ershan, the second largest in the country The inland river, the Heihe River, traversed the whole territory and formed the famous Zhangye Oasis, which is known as the “southern Jiangnan”. Ganzhou District is located in the hinterland of Qianlihe West Corridor, the intersection of the ancient "Silk Road" and the "Jianyan Ancient Road", the southern pillow of Qilian Mountain, the north of Heli, the Longshou Mountain, and the second largest inland river in the country. - The Heihe River traversed the whole territory and formed the well-known Zhangye Oasis, which is known as the "southern Jiangnan".