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Rocky Mountains Complex
Tacitus Containment
The core of the complex, protected by two layers of energy barrier

Rocky Mountains, USA


North America


Low Tiberium contamination


Blue Zone (2052)



Appears in

Kane's Wrath


Tacitus Regained

Couldn't they store the Tacitus at somewhere more tropical?!
- A soldier from the 2nd Armored Regiment of the Black Hand

The Rocky Mountains Complex, also known as the Cheyenne Mountain Complex, was a United States military installation and nuclear bunker located in Colorado. Originally serving as the headquarters of the North American Aerospace Defense Command (NORAD) and United States Northern Command (USNORTHCOM), it eventually became a GDI facility after the US military was absorbed by the GDI.


The Cheyenne Mountain Complex traces its origin back to the late 1950s, when a plan was created for an underground command and control center capable of withstanding long-range bombers, ballistic missiles, and a nuclear attack. Construction began in May 1961, and was completed in 1964. In 1966, NORAD operations were transferred to the Complex from Ent Air Force Base.

Two years after GDI captured the Tacitus at the end of the Firestorm Crisis, the Tacitus was transferred to this facility, where GDI scientists attempted to interface with it. However, despite having some of the best and brightest minds of the entire world working on the project, progress was slow.

During the Third Tiberium War, the Tacitus was transferred back to this facility from China via sea after a failed attempt to capture the alien device by a Nod strike force led by LEGION. Though why the Tacitus left the facility in the first place was never explained.

In 2052, the Tacitus became increasingly unstable due to the experiments of the GDI research team. Fearing that the Tacitus may be destroyed for good, Kane ordered LEGION to attack the facility and retrieve the Tacitus before it self-destructs.

Despite fierce resistance, LEGION's forces managed to recover the Tacitus before its complete destabilization.


The primary defense of the Rocky Mountains Complex was a pair of impregnable energy barriers, presumably derived from the same technology as the Firestorm barrier. The inner barrier protects the Tacitus containment facility itself, and the outer one covers a much wider area, which contains a GDI base. A large number of AA batteries and several Watchtowers are also present within the barriers, in case they fail.

The entire Complex is dotted with defensive emplacements, including AA batteries, Watchtowers, Sonic emitters, and Battle Bases. Several outposts are constructed in strategic locations, and the Complex is constantly patrolled by elite GDI forces.
Rocky Mountain buildings

One of the bunker exits and a communications center

In addition, a huge army was amassed in bunkers beneath the mountains, allowing them to quickly provide reinforcement through four bunker exits.

Unfortunately, the Complex also has several weaknesses: much of its defense emplacements were powered by poorly defended external power plants, the exits of the bunker were vulnerable to attack, and most importantly, while the energy barriers were physically impenetrable, they were still vulnerable to cyberwarfare. The last weakness proved to be GDI's undoing, as LEGION's forces managed to bring down the energy barriers by hacking GDI communications centers during their assault on the facility.


  • Strangely, unlike most other GDI facilities with great importance, the Rocky Mountains Complex does not have an Ion cannon control.

External Links

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Tiberium Universe Locations

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