Hang Kia and Pa Co are two highland communes in Mai Chau district, the northwestern mountainous province of Hoa Binh. They are located within the Hang Kia – Pa Co Nature Reserve. Over 90% of the population is from the Mong ethnic group. With its pristine landscapes, majestic mountains, and well-preserved cultural heritage, this area has great potential to become a popular tourist destination in the Northwest region of Vietnam.