rMa-chu and ’Bri-chu rivers become Yangtze river. Someone in the Wikipedia renders it as “Red River” (as if dMar-chu but erroneously spelled as Mar-chu). I corrected it to rMa-chu (as in Tibetan sources). But what is the etymology of rma chu? Perhaps “Wound[-like Red] River”? This is a possibility I suggested in the Wikipedia.