《山海经·山经·西山经》
再往西北五十里，有一座高山，山上有丰富的白银，山下到处是青碧、雄黄，山中的树木大多是棕树，而草大多是小竹丛。
又西百五十里高山，其上多银，其下多青碧、雄黄，其木多棕，其草多竹。
Fifty li further northwest, there is a high mountain. The mountain has abundant silver while its foot is full of qingbi and xionghuang. Most trees in the mountain are zongshu trees, while grass is mostly bushes of small bamboo.