Sa Pa
Sa Pa was a frontier township and capital of former Sa Pa District in Lào Cai Province in north-west Vietnam. It was first inhabited by people about whom nothing is known. They left in the entire valley hundreds of petroglyphs, mostly composed of lines, which experts think date from the 15th century and represent local cadastres. Then came the highland minorities of the Hmong and Yao. The township is one of the main market ones in the area, where several ethnic minority groups such as Hmong, Dao (Yao), Giáy, Pho Lu, and Tày live. These are the four main minority groups still present in Sa Pa district today. The Kinh (lowland Vietnamese) never originally colonised this highest of Việt Nam's valleys, which lies in the shadow of Phan-Xi-Pǎng (Fansipan, 3143 m), the highest peak in the country. Sa Pa is also home to more than 200 pieces of boulders with ancient engravings. The "Area of Old Carved Stone in Sapa" has been in the UNESCO tentative list since 1997.