Shibukawa, Gunma
Shibukawa (渋川市, Shibukawa-shi) is a city located in the center of landlocked Gunma Prefecture in the northern Kantō region of Japan. As of February 2015, the city had an estimated population of 208,705 and a population density of 1500 persons per km². Its total area was 139.44 km². Shibukawa is the location of Ikaho Onsen, a popular hot spring resort.
Geography
Shibukawa is located in the northern extremity of the Kantō plains of central Gunma Prefecture, encompassing the juncture of the Tone River and Agatsuma River. It is about 120 kilometres (75 miles) from Tokyo. Shibukawa is located at a central point (36°29′ N, 139°00′ E) of the Japanese archipelago and is thus known as the Bellybutton of Japan (日本のおへそ, nihon no oheso). To the west is Mount Haruna, and to the east is Mount Akagi. To the north are Mount Onoko and Mount Komochi. The Tone River flows from the north (between Mount Akagi and Mount Komochi) southward through the city, while the Agatsuma River flows from the west (between Mount Onoko and Mount Haruna), merging with the Tone River near the center of the city.