<b>CIA map on the ethnolinguistic groups in the Caucasus region.</b> National borders are thick black, regional borders within one country in thin black, and disputed borders as dotted lines.
U.S. Central Intelligence Agency
TIFF taken from the following source (maximally cropped and then converted to JPG): <a rel="nofollow" class="external free" href="https://www.loc.gov/item/2005626531/">https://www.loc.gov/item/2005626531/</a> (permalink: <a rel="nofollow" class="external free" href="https://lccn.loc.gov/2005626531">https://lccn.loc.gov/2005626531</a>)