Liancourt Rocks (Dok To) (Take Shima) (37°15'N., 131°52'E.), about 118 miles off the Korean coast, consists of two barren, rocky islets, about 183m apart and surrounded by numerous rocks. A depth of 19m was reported, 2 miles NW of Liancourt Rocks. The W islet has a sharp peak, 157m high, with the E islet being lower and flatter. A light is shown from the E islet.Ullung Do (Ulleung Do)(37°30'N., 130°50'E.), about 70 miles off the Korean coast, is a mountainous island with sharp conical peaks, most of which are wooded. Several islets and rocks lie close off the coast, particularly its N and E sides. Jug Do (Chuk To), with a flat summit and covered with trees, lies off the NE extremity of Ullung Do.

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