From Halopedia, the Halo wiki
Habitat Bolívar was an area of The Rubble. It was located in the outer Rubble, and had a nearby dock. Only one known ship has ever used this dock, Petya, which was controlled by Gray Team. Once, they were infiltrated by an AI, and had to shut down power, and came only half a mile from crashing into one of the Habitat's docking tubes, yet people seemed unaware of it (probably because it was the AI's job to monitor ship traffic).
The habitat seems to be named in reference to Simón Bolívar, the infuelntial Venezuelan military and political leader who liberated most of South America from the rule of Imperial Spain in the early 1800s.
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