Potato Banquet is located at No. 14, Xiangyang Road, Lan County, Luliang City.

Lan County, affiliated to Luliang City, Shanxi Province, is located in the west of the central part of Shanxi Province, with Luliang to the north and Xinzhou to the south. It borders Taiyuan, Jingle to the east, Loufan and Fangshan to the south, Xing County to the west, and Kelan and Lan to the north.

The county has a high altitude and flat terrain. It is known as the sky among the clouds. Lan County has a temperate continental monsoon climate with a cool climate. The highest altitude in the county is 2275 meters and the lowest altitude is 1154 meters.

There are more than 20 kinds of mineral resources proven to have mining value in Lan County, including coal, iron, manganese, marble, granite, etc., especially coal and iron.

In September 2018, at the 16th China International Grain and Oil Products and Equipment Technology Exhibition Fair, Lan County was awarded the Hometown of Potatoes (Gourmet Food) in China. On April 18, 2019, the Shanxi Provincial People's Government approved Lan County's exit from poverty.

County, on January 22, 2020, was named a National Garden County by the Ministry of Housing and Urban-Rural Development.

Geographic environment The terrain of Lan County is relatively complex. There are four landform types in the territory: mountains, hills, plains, and valleys. Mountains and hills account for 85% of the total area. The Lan River Basin in the center is flat. It is a small plain on the Luliang Mountains.

The average altitude of the county is 1,415 meters. The highest point is Yujiaxian, Shuigouzi Village, Dashetou Township, with an altitude of 2,275 meters. The lowest point is Ya'erchi, Quli Village, Sheke Township, with an altitude of 1,131 meters.

Lan County belongs to the Yellow River Basin. The main rivers in Lan County are Lan River, Weifen River, Lanyi River, Yuwan River, and She'an River. The largest river is Lan River, which is a first-level tributary of Fen River and originates from Ma Tou Mountain in Hekou Township.

, the main tributaries include Lancheng River, Puming River, Shangming River, Shunhui River and Nanchuan River. Lanhe River is 51 kilometers long, with a drainage area of ??1,061 square kilometers and an annual runoff of 56.28 million cubic meters.