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|• McCune-Reischauer||Riwŏn kun|
|• Revised Romanization||Riwon-gun|
|Province||South Hamgyong Province|
|Administrative divisions||1 ŭp, 3 workers' districts, 21 ri|
Riwŏn is mountainous, although there are also small plains, and is home to the Taedŏk Mountains (대덕산맥). The highest peak is Taedŏksan (1,442 m). There are some 10 significant streams; the chief of these is the Namdaech'ŏn, which drains into the Sea of Japan. There are various bays and islands along the coast. Thanks to its coastal location, the county enjoys a mild maritime climate. Forestland (70% of which is coniferous) takes up 73% of the county's area.
Mining and manufacturing
Machine manufacturing dominates the local economy, accounting for half of annual industrial production. Deposits of iron, iron sulfide, talc, limestone, graphite, quartzite and silica are found in the county. The Riwon Mine produces talc.
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