The A Pa Chai Flagpole and Vietnam-Laos-China tri-border marker in Sin Thau Commune opened to tourists on September 1.
The new attractions are expected to promote the area's natural landscapes, culture and history while supporting local livelihoods and sustainable tourism.
A Pa Chai, on Khoang La San mountain at 1,866 metres above sea level, is known as Vietnam's westernmost point. The border marker stands at the junction of Vietnam, Laos and China.
The nearby A Pa Chai Flagpole is another landmark for visitors exploring the remote mountainous area.
Sin Thau boasts largely unspoilt landscapes and is home to several ethnic communities, including the Ha Nhi and Mong, whose traditional cultures have been preserved for generations.
The Ha Nhi community retains distinctive cultural features, including traditional rammed-earth houses, hand-embroidered clothing, festivals, folk rituals, traditional arts and local cuisine.
Nguyen Van Thang, chairman of the Sin Thau Commune People's Committee, said the area would pursue green, sustainable and responsible tourism, focusing on environmental protection, cultural preservation, improved services and visitor safety.
At the launch ceremony, delegates cut the ribbon to formally open the A Pa Chai Flagpole and tri-border marker to visitors.
Visitors can now explore the two landmarks, reach Vietnam's westernmost point and experience the traditional culture of local ethnic communities.