Chinese linguistic groups, 1990. The map shows the distribution of linguistic groups in China according to the historical majority ethnic groups by region. Note this does not represent the current distribution due to age-long internal migration and assimilation.
U.S. Central Intelligence Agency
<a href="//commons.wikimedia.org/wiki/File:China_linguistic_map.jpg" title="File:China linguistic map.jpg">File:China_linguistic_map.jpg</a>