Mountain range between the Black Sea and the Caspian (8)

I believe the answer is:

caucasus

(Other definitions for caucasus that I've seen before include "Mountainous area between Caspian and Black seas" , "Mountain range in southwest Russia" , "Black-to-Caspian Sea range" , "Range of Georgia, etc" , "Mountain region between Caspian and Black seas" .)

I've seen this clue in The Guardian.

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