Glacier (Halo 5: Guardians map)
From Halopedia, the Halo wiki
Glacier has a snow and ice covered mountainous landscape, with a giant ravine cutting down the middle of the map.
Three skyboxes are available for the map, corresponding to different times of day:
A Halo ring can be faintly seen in the skybox on the "Nighttime" setting. This Halo is only partially rendered, as stars are seen in front of where the rest of the Halo should be.