Caledonia
From Halopedia, the Halo wiki
Caledonia was one of the six continents on the planet Arcadia,[1] a UNSC colony in the Procyon system. It was abandoned after the Battle of Arcadia in 2531 and destroyed by the Covenant in the Fall of Arcadia in 2549.
Trivia
It is most likely named after Caledonia, the Latin name given to Scotland by the ancient Romans.
