Uffern
From Warhammer 40k - Lexicanum
Uffern was a minor hive city located on the planet Armageddon.[1a]
History
Effectively a satellite hive to the major hive of Tempestora, Uffern's population in late M41 was a mere ten million.[1a]
At the start of the Second War for Armageddon, Ghazghkull's Ork army made planetfall on Armageddon via the Space Hulk Claw of Desolation, crashing into Uffern in the process. The impact obliterated the hive, reducing it to rubble.[1b]