Nghia Lo, with a population of 30,000, is tucked away in a big, flat valley called Muong Lo and offers a lot of experiences to tourists. It is second only to the Muong Thanh valley of Dien Bien Province in terms of size and is surrounded by unlimited chains of mountains. If you want to see the culture and daily life in Viet Nam's mountainous region, Nghia Lo town in Yen Bai Province is a must-visit destination.