shikoku island and region in japan with prefectures, political map

shikoku island region japan prefecture map tokushima kochi ehime kagawa asia east matsuyama takamatsu shodo awaji hiroshima osaka kobe kyushu honshu main japanese seto inland sea pacific tosa bay naruto imabari niihama uwajima archipelago country border boundary mapping atlas overview cartography geography coast coastline city travel destination political infographic vector