Golgotha

Golgotha is the graveyard outside of New Reno, where people are sent to be killed, and/or killed people are buried, when they fall out with one of the mob families in New Reno.

Graves lie to all four sides of a paved crossroads, and staked bodies rot in the sun. A sign points northwest to New Reno and down, conveniently indicating the direction of Hell.

Accessing
Golgotha can not be naturally revealed on the map, and there are only 3 way to get it's location:
 * Ask Jules in the Virgin Street of New Reno and choose the replies "Can you tell me a little about New Reno?" until "Golgotha?".
 * Try to remove Myron from the group and choose the reply "Like what kind of favor?" He will then tell you about a secret Mordino stash containing the loot only accessible through this dialogue.
 * During the quest "Track down Pretty Boy Lloyd, recover the stolen money, and make an… example of him."

Fallout shelter
Simple: The footlocker contains the cash Lloyd stole.

Appearances
Golgotha appears only in Fallout 2 but it's mentioned by Stella in the Fallout: New Vegas add-on Honest Hearts.

Behind the scenes

 * In Christianity, the place where Jesus was crucified is also called Golgotha, Greek meaning "place of the skull", and the rest of the road in the Golgotha strangely form a cross.