The headwaters of theYangtze, including the Ulan Moron ("Tuotuo He"),Dangqu, Buqu, and Garqu1975DMA map of the region around the Ulan Moron ("T'o-t'o Ho")
The Ulan Moron begins as melt-off from theGeladandong glaciers and runs to a confluence with theDangqu or Dam Chu River, where they form theTongtian River, which subsequently becomes theYangtze River. Although the Dangqu has been found to be the source of the Yangtze under the usual modern criteria, the Ulan Moron has been traditionally regarded as the main river and source. It belongs to theEast China Sea watershed basin.
^In Chinese, thecharacter河 originally described theYellow River and江 theYangtze. In modern practice, ajiang is usually a longer river, whilehe varies from shorter rivers (as the Tuotuo) to creeks (such asSuzhou Creek inShanghai).
^But note Mei Zuyan who claims the Chinese name merelytransliterates a former Tibetan name.[2] Bolstering his point is the alternate Chinese spelling of the river's name as the托托. In fact, if the name was originally a transliteration, it probably derives from a variant of the MongolianTogtoh.[3]
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