The prison building is the closest building to the Courier as they enter the radio station building area at the top of Black Mountain. Raul Tejada, a ghoul mechanic, is imprisoned in this building. The door to his room is locked and the Courier must either have a Science skill of 100 to hack the nearby terminal, a key to open the door, or they must access the second terminal near the building's entrance. Reading entry 6 on the terminal will reveal the password, which is "123456789." Once freed, Raul Tejada can be recruited as a companion.
- Black Mountain prison password - A note, can be found on the left terminal by reading entry 6.
- Cuddles' toy car - A unique version of the toy car, on the table next to a terminal. Will be named "toy car" before reading entry 5.
The prison building appears only in Fallout: New Vegas.