Tuyên Hóa

Tuyên Hóa lies among the wooded hills and valleys northwest of Thái Nguyên. Under the Lý dynasty the area belonged to Định Biên, while during Ming rule it was known as Tuyên Hóa. In 1466 Lê Thánh Tông renamed it Định Hóa and placed it under Phú Bình prefecture. Its villages and small settlements occupied valleys between the mountain ridges of the northern country.