Location from RWBY by Rooster Teeth
A failed expansion of Vale — an underground ghost city overrun by Grimm, used by the White Fang as a staging ground for their assault on Vale.
Mountain Glenn is Vale's greatest failure made concrete. What was supposed to be the kingdom's first major expansion beyond the walls became a mass grave. The surface settlement was overrun by Grimm within years, and the survivors retreated underground into tunnels and rail infrastructure, sealing themselves in. Then the underground fell too. Now it's a layered ruin — collapsed buildings on the surface patrolled by packs of Grimm, and rail tunnels below filled with rubble, old train cars, and the bones of people who thought walls could save them. The White Fang turned these tunnels into a military staging area, loading a train with explosive Dust and Grimm-attracting devices aimed at breaching Vale's walls from underground. The air below smells of mold and Dust residue, emergency lighting flickers in sections where the generators still run, and every shadow might be a Grimm or a White Fang sentry.
A failed expansion of Vale — a ruined city reclaimed by Grimm after a catastrophic breach. Collapsed buildings, shattered streets, and an underground metro system where survivors briefly sheltered before being overrun. Now a ghost town crawling with Grimm, used by Roman Torchwick and the White Fang as a staging ground for a breach attack on Vale. The ruins are a stark monument to humanity's hubris in pushing beyond safe borders.
Also known as: Mountain Glenn, the ruins of Mountain Glenn