Fangmatan

Fangmatan (simplified Chinese: 放马滩; traditional Chinese: 放馬灘; pinyin: Fàngmǎtān) is an archeological site located near Tianshui in China's Gansu province.

The date of the burial of Tomb 1 was approximately 230 to 220 BCE at the very end of the Warring States period; it was excavated in 1986.

[1] The tomb contained a number of long-lost texts written on bamboo slips, including almanacs (Rishu 日書), legal texts, medical works, and seven maps.

The maps are drawn in black ink on four rectangular pieces of pine wood, 26.7 cm in length and between 15 and 18.1 cm in width, and depict the tributary river systems of the Jialing River in modern Sichuan province.

The map, which depicts topographic features such as mountains, waterways and roads, is drawn on the oldest extant piece of paper.