The Iron is a collectible Golden Skull in Halo 3, as it is with the rest of the Golden Skulls this skull worths 10 Gamerpoints. Sierra 117 campaign level, when activated it can reset the respawn location to the beginning of the game in single player mode. This skull can be found next to a pillar at the corner of a wall, right down a bridge where you will have to rescue Sergeant Johnson.
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