|The following is based on Fallout Tactics and some details might contradict canon.|
Here, inside of a run down gas station, you'll find Granma operating a trading post. She'll sell the player a number of edibles, chems and medical items, along with the Elixir of Life, a unique drink that permanently adds +1 to Endurance and +17 Hit Points.
This encounter is one of many special encounters of Fallout Tactics, and it is intended for humor. Because of this, this location and the events that transpired within it should be considered as non-canon.
Any items you leave on the floor of this map will respawn every time you visit the map. (fixed in 1.27)