This file is a map of a municipality in Japan created and uploaded by Lincun on Japanese Wikipedia. It may also be a file based on one of these maps (see info in file history or author field for more info on later editors). Source:

• English: Data used : Ministry of Land, Infrastructure, Transport and Tourism - National Land Numerical Information (Administrative Area (N03) / Lake (W09))
• 日本語: 使用データ : 国土交通省 国土数値情報(行政区域(N03)・湖沼(W09))

The original file was licensed {{GFDL}} and {{Cc-by-sa-3.0}}. See this category for more files like this.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.