Fallout: New Vegas locations project
Sierra Madre lobby
You inside. Can you hear me? Power's fluctuating... emergency power. Oh! You are in. Good... thought that might be the end of you. Unfortunately, your... "friends" also found their way here. Knocked unconscious... just like you. Wondering what happened? You were hit by casino security. Detects anything foreign - radioactive, it subdues the "visitor," moves them if needed.”— Father Elijah
On the first floor, there is a waiting area and fountain on the left and the reception desk on the right. The receptionist's terminal found on the welcome desk can activate/deactivate holograms once you locate the security code found on The Tampico's front desk terminal. The casino is directly in front of the door and the Cantina Madrid restaurant in to the right; both are on the first floor.
On the second floor is The Tampico theater on the left and the executive suites directly up the stairs. Upon first entering the entrance several speakers are active, some of which are shielded, and will not be turned off until the casino floor has been visited and completed.
After progressing far enough with quests, ghost people will begin inhabiting the room since they've found a new way in besides the front door.
- After coming back to the lobby during the course of the game, you will hear banging coming from the entryway, which is purportedly ghost people trying to get inside.