Sierra Madre Grand Opening!

 is a quest in the Fallout: New Vegas add-on Dead Money.

Quick walkthrough
Track down the source of the Sierra Madre invitation.

Detailed walkthrough
This quest is given to the player automatically after downloading the Dead Money DLC and then, either loading a saved game or stepping out into the Mojave wasteland for the first time.

A radio signal is found which advertises the Sierra Madre casino. Travel to the Abandoned BoS Bunker to learn more.