《山海经·山经·北山经》
往北二百八十里，有一座大咸山，没有花草树木，山下盛产玉石。
北二百八十里，曰大咸之山，无草木，其下多玉。
Two hundred and eighty li to the north, there is a large salty mountain, without any flowers, grass, or trees; the foot of the mountain produces much jade.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 北二百八十里，曰大咸之山，无草木，其下多玉。 [/INST] Two hundred and eighty li to the north, there is a large salty mountain, without any flowers, grass, or trees; the foot of the mountain produces much jade.</s>
Explain the meaning of this Classical Chinese passage in English: 北二百八十里，曰大咸之山，无草木，其下多玉。
user
Two hundred and eighty li to the north, there is a large salty mountain, without any flowers, grass, or trees; the foot of the mountain produces much jade.
assistant