Táohé biān chūchǎn de lǜsè shítou kěyǐ zuòchéng yàntái.
The green stone found along the Tao can be made into inkstones.
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culture
It rises in eastern Qinghai and joins the Yellow River at the Liujiaxia reservoir in Gansu. Its green stone makes 洮砚, one of China's four famous inkstones.
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Calling the inkstone itself 洮河 belongs to classical poetry; in modern Chinese it is 洮砚.