Luc Khu is an area with high mountains in the Ha Quang district in the Cao Bang province in the far north of Vietnam. It is a remote and untouched area with clean air, small fields and a beautiful nature. The temperature varies from very hot in summer to very cold in winter. These variations in temperature however make it not really suitable for producing the large food crops such as corn and rice. Throughout the year, agricultural production depends entirely on natural rainfall as the whole region has no other source of water.
The district consists of 12 communes, half of which are at the Chinese border. The population consists largely of minority ethnic groups: Tay, Nung, Dao and H’Mong who have traditionally lived in the area.