《山海经·山经·北山经》
在泰泽中屹立着一座山，叫做帝都山，方圆一百里，不生长花草树木，有金属矿物和玉石。
其中有山焉，曰帝都之山，广员百里，无草木，有金玉。
In the middle of Te-tse stood a mountain called Ti-tu Hill, which covered about a hundred li and produced neither plants nor grass but only minerals and stones.