Eastern Mountain Range

The Eastern Mountain Range is a snowy mountainous area on Chorus and holds the location of the Temple of the Key. The location first appears in the episode Temple of the Key.

Role in Plot
After Santa informs Carolina, Emily Grey, and the Blue Team about the key of Chorus, he explains that its location is in the east mountains. However, after Sharkface and his space pirates eavesdrop on their conversation, they ambush the group and Sharkface leaves to the east mountains to get the key. He is joined by Felix and the two venture to the eastern mountain range, only to find out that Doyle has already obtained the key, after he was dropped off by Lopez and Donut. When the away team manage to catch up with the pirates, Carolina chases after Sharkface and the two engage in an intense battle. Eventually, Carolina ends up falling off a cliff, while Grey and the Blues find Doc in a cave.

Trivia

 * The area surrounding the Temple of the Key is represented by the Halo 4 map, "Meltdown".