Wuchih

— The River Ch'in, he explains, rises in Shansi and after entering Honan at Chi-yüan continues its course through the two districts of Ho-nei and Wuchih until it joins the Tatan River and eventually empties itself into the Yellow River.[…]In the Honei district it is 76 li in length on the southern side and 78 li on the northern; in the Wuchih district its southern side measures over 60 li and its northern over 70 li in length.