Gregor Canyon
From Halopedia, the Halo wiki
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Gregor Canyon was a canyon near Zone 67 on the planet Onyx. Slabs of Onyx were quarried from the canyon by the UNSC here.[1]
List of appearances
- Halo: Ghosts of Onyx (First appearance)
Sources
- ^ Halo: Ghosts of Onyx, page 269