Oblivia

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Oblivia (Japanese: 忘却の渓谷, Bōkyaku no Keikoku lit. Valley of Oblivion; English dub: /oˈblɪv.i.ə/), also known as Sandy Bum Canyon (Japanese: メニスナ谷, Menisuna Dani) to the Nopon, is a region in Xenoblade Chronicles X.

It lies to the east of Primordia. Oblivia is a dry, arid region with sparse vegetation. More enigmatically, it contains numerous ruins, is interwoven with gigantic metal water pipes, and hosts several colossal ring-like structures left over from a forgotten alien race that once lived in ancient Mira.

Oblivia's most dominating geographical feature is the Yawning Giant, a vast dry inland chasm plunging far below sea level, whose depths are shrouded in thick layers of air which obscure the chasm's floor.