Ancient Rock Field is an area about 8 sq.km amongst the terraced
rice paddies in Muong Hoa Valley approximately 12km southwest
of Sapa town in Hau Thao Commune. The first exploration research,
in 1925, recorded that there were 200 stones of various dimensions
concentrated in the area. Hon Bo, which is 15m long and 6m
high, is the biggest of theses rocks. The engravings on the
surfaces of the stone are either pictographic or decorative.
Remarkably, among the engravings are drawings of humans, stilt-houses
of the ethnic minorities and symbols believed to be a primitive
form of writing. But their meaning has not yet been deciphered.
In addition, impressive images include a da chong (the husband
stone), da vo (the wife stone), as well as stones that look
like tigers and a Stella with an incantation written on it
by the carver to help his people defeat the tigers.
Archaeologists have proven that this area has been inhabited
since ancient times. These fascinating Viet remains have drawn
the attention of scientists and tourists.