Pho Cao market is a backward market, which opens on the backward days of the week. If this week, it opens on Sunday, next week, it will open on Saturday and in the following weeks, it will open on Friday, Thursday and so on…Situated on the 4C national road, Pho Cao market is not only a place of buying and selling products but also a place of cultural exchange among 17 ethnic groups in the bordering region. The market opens in the early morning and is covered by fog all year round. This is also a special feature of Pho Cao market and other markets in the mountainous areas. Every market-day is crowded, animated and attractive for visitors.

Location: about 65 kilometers to the Southeast from the town center of Yen Minh, along the road connecting Mau Due (Yen Minh) to Minh Son (Bac Me).

Location: at the center of Mau Due commune and next to the road connecting Yen Minh – Meo Vac. Garthering time: weekly on Wednesday and Sunday, usually end at noon. This market is most crowded on Sunday.

Location: 12 kilometers from the town center of Tam Son. Garthering time: every Thursday and usually end at noon.

Location: about 7 kilometers from the town center of Tam Son, and 38 kilometers from Ha Giang city. Garthering time: every Saturday and usually end at noon.