舆图
The Diy-Gid-Biy (DGB) sites are archaeological sites located around the Mandara Mountains of northern Cameroon and Nigeria, overlooking the several kilometers long Shikewe watershed. These sites get their name Diy-Gid-Biy from the Mafa language, which can be translated as "place of chiefly residence." There are 16 of these DGB sites which date back to around the 15th century AD. While knowledge of these sites has existed for some time, only in 2001 archaeologists began to investigate the sites and their cultural heritage in relation to the region.
摘自英文维基百科「Diy-Gid-Biy」，按 CC BY-SA 4.0 使用
