Tumangang
Appearance
42°25′18″N 130°36′09″E / 42.4216825°N 130.6025505°E Tumangang Workers' District (Korean: 두만강) is a town in Sonbong, Rason, North Korea. It is the closest town of North Korea to the border with Russia. Tumangang sits on the Tumen River, and across the river is the Russian town of Khasan. A train connects Khasan with Tumangang and from there to Rason. A road also connects Tumangang and Sonbong.