National Geographic : 1890 Aug
242 National Geographic .Magazine. a small map (Fig. III) giving the Korean names of the towns and districts with their English equivalents and the names of the provinces of the kingdom in which the places are situated. I was told repeatedly that the metal was most plentiful at Tan chhon, in the Ham-kiung province. Concerning this locality our Korean geographer says, "at Ma-un, west of Tan-chhon, much gold is found. The mountains there are lofty and precipitous."
1891 Mar 28