Were you looking for Lemuria, the province on Groombridge-1830?
Lemuria was one of the six continents on the planet Arcadia, a UEG colony in the Procyon System.
It was abandoned after the First Battle of Arcadia in 2531, and destroyed by the Covenant in the Second Battle of Arcadia in 2549.
- ↑ Halo Waypoint: Arcadia
- ↑ Wikipedia: Lemuria (continent)