唐努乌梁海
Russian merchants from Minusinsk followed, especially after the Treaty of Peking in 1860, which opened China to foreign trade. They were lured by the "wild prices," as one 19th-century Russian writer described them, that Uriankhais were willing to pay for Russian manufactured goods—cloth, haberdashery, samovars, knives, tobacco, etc. By the end of the 1860s there were already sixteen commercial "establishments" ("zavedenie") in Tannu Uriankhai. The Uriankhais paid for these goods in livestock-on-the-hoof, furs, and animal skins (sheep, goat, horse, and cattle). But crossing the Sayan Mountains was a journey not without hardships, and even peril; thus, by 1880-85 there were perhaps no more than 50 (or fewer) Russian traders operating in Tannu Uriankhai during the summer, when trade was most active.