The Bac Sum Slope with winding mountain roads in Dong Van District. (Photo: VNA) 
The Ma Pi Leng Pass, 1,600-1,800m above sea level, is one of the most dangerous passes in the north. (Photo: VNA) 
The Mong King's Vuong Palace is located in Sa Phin Commune, Dong Van District. It spans 1,120m2 with a united structure of three-layers.(Photo: VNA) 
A Mong man cultivates on rocks in the Dong Van Karst Plateau Geopark. (Photo: VNA) 
A Mong woman carries soya beans on her back. (Photo: VNA) 
Weaving time in Lung Tam Commune, Quan Ba District (Photo: VNA) 
Two men in Dong Van District build a Mong house using traditional techniques. (Photo: VNA) 
Mong women transport bricks to their hamlet to build new houses in Dong Van District. (Photo: VNA) 
Terraced rice fields in Ha Giang (Photo: VNA) 
Terraced fields in Hoang Su Phi during the watering season(Photo: VNA) 
An ancient town in Dong Van (Photo: VNA) VNA
