Ridgeline

Ridgeline is a multiplayer map included in Halo: Combat Evolved Anniversary and the Anniversary Map Pack for Halo: Reach. It is a remake of Timberland from the PC port of Halo: Combat Evolved, with several alterations to map layout.

Universe and lore
The map is set in a former UNSC staging area on a cliff overlooking an enormous Forerunner relay complex. Toward the end of the conflict on Installation 04, the Marine resistance in the area was wiped out by Covenant forces.

Callouts
The following are locations on the map that are so named on the player's heads-up display during gameplay:
 * Upper Red Base
 * Lower Red Base
 * Outer Red Base
 * Red Foothill
 * Overlook
 * Red Encampment
 * South Ridge
 * River
 * Upper Blue Base
 * Lower Blue Base
 * Outer Blue Base
 * Blue Foothill
 * Waterfall Path
 * Blue Encampment
 * North Ridge

Trivia

 * Ridgeline is the first map in the Halo franchise to include trees as a Forge item. The forgable trees for this map are called "Tree, Dead"
 * Despite being set on Installation 04, the planet in the map's sky appears to be an earthlike world with visible continents and oceans, as opposed to the gas giant Threshold.