Vault 15
Vault 15 is one of the Vaults built by Vault-Tec. Like Vault 13, for example.
History
Long ago, the situation in Vault 15 led to a schism, and all the inhabitants split into four groups. The Jackals, the Vipers and the Khans turned into raiders that only wanted to kill everyone in the wasteland, while the fourth group founded Shady Sands that would later become the great and powerful capitol of NCR.
Threats
The interior is populated with hostiles called Slags, leftover raider types from the old days.
Interests
On the very last floor, there is a computer in the room to the left. Use Science on it and you will obtain Electronic Parts. There are a number rats, pigrats, and molerats that respawn every so often. You can also find Medical Terminal inside Vault 15.
Location
Vault 15 is located at Grid 39:27 (due east of Shady Sands).