A few weeks ago I joined a tour to Yunnan and Guangxi, two provincial divisions that are contiguous to each other and border on Myanmar, Laos and Viet Nam. Yunnan and Guangxi are in southwestern China, with a geographic location roughly like that of Arizona and New Mexico in the United States. Coincidentally, the combined territory of Yunnan and Guangxi, about 610,000 square km, is equivalent to the size of the two American states.
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