|First Appearance:||Nightmare on Planet Evil|
|Inhabitants:||Blues and Reds|
Desert Gulch serves as one of the major locations in Season 15 and is where the Blues and Reds were originally stationed to while under Project Freelancer. According to Doc, it served as a prototype to Blood Gulch.
It is visually similar, if not identical, to it's successor, though it has sand instead of dirt and grass. It is where the Reds and Blues first encounter the Blues and Reds, who reveal that it was their original base. When Tucker finds Doc in their rankings, he reveals that Blues and Reds (and Desert Gulch by association) were the originals while the Reds and Blues were the "crappy copies."
- Because of it's similarity to Blood Gulch, Caboose was able to recognize various areas as if they were in the same location.
|Halo: CE Era: Blood Gulch • Sidewinder • Caboose's Mind • Battle Creek • Teleporter Nexus|
|Halo 2 Era: Great Burning Plains • UNSC Wind Power Facility • Great Swamp • Great Freezing Plains • Cities • Island Fortress • Underground Caves|
|Halo 3 Era: Valhalla (Hologram Chamber) • Rat's Nest • Outpost 48-A • Command (A.I. Containment Facility) •|
|CG Animation Era: A.I. Storage Unit • Angel On My Shoulder • Mother of Invention (Training Room) • Bjørndal Cryogenics Research Facility • Insurrection Building • UNSC Archives • UNSC Scrap Metal Recycling Station • Longshore Shipyards|
|Halo 4 Era: Chorus (Crash Site Bravo • Forest Base • Desert Refueling Station • New Republic Headquarters •|
Crash Site Alpha • Armonia • Radio Jammer Station 1C • Charon Research Complex 2C • Charon Excavation Site •
Jungle Temple • Eastern Mountain Range • Communication Temple • Purge)
|Halo 5 Era: Armada 8 • Desert Gulch|
|Project Freelancer: 1-Blood Gulch: 1A 1B · 9-Sidewinder · 17-Valhalla: 17A 17B · 25-Rat's Nest: 25A 25B · 48-High Ground: 48A · ?-Desert Gulch|
|Federal Army of Chorus: 22-F.A.C. Outpost 22 · 37-F.A.C. Outpost 37|
|Unnamed: Battle Creek · UNSC Wind Power Facility · Danger Canyon · Timberland|