Tuyen Quang is a province of Vietnam, located in the northeastern part of the country to the northwest of Hanoi, at the centre of Lo River valley, a tributary of the Red River. Its capital is Tuyen Quang. The province had a population of 784,811 in 2019, with a density of 130 persons per km2 over a total land area of 5,867.3 square kilometres (2,265.4 sq mi).
Na Hang is an ideal eco-tourism destination for adventurous travelers, exploring mysterious caves and primeval forests. Each river or each mountain is linked with a certain legend. So, Na Hang is known as a legendary land in Tuyen Quang.