Caucasia
a sub-division of Russia, between the Black and Caspian Seas, and extending from the frontier of Persia on the S. to the Kuma-Manych depression on the N. The Caucasus Mountains divide the territory into Cis-caucasia and Trans-caucasia. The total area of Caucasia, the two parts being nearly CAUCASIAN RACE equal, is 181,173 square miles, and the population, Trans-caucasia being the ing on all the members. more thickly settled, about 13,500,000.