"A key that opens the locked door in the underground ruins."
— Item examination
Key to the Mine is a key item in Resident Evil 4.
This item is a key that opens the mine beneath the castle.
- Koichi Hamamura, ed (2006) (in Japanese). biohazard4 kaitaishinsho revised edition. Famitsu. ISBN 4-7577-2638-4.
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