The San Luis was once a lake in California.
The San Luis is mentioned only in Fallout: New Vegas.
Behind the scenes
The San Luis is a real world location of the same name.
- Hanlon: "Back west, you don't see too many of these. Lakes, I mean. Natural or man-made. Any kind, really. We neglected the dams or pumped all the water out a long time ago. Owens, Isabella, the San Luis. Drained the aquifers of everything they had. Just a lot of mud and dust now. It's a different feeling, watching the sun come up over the water. Takes some getting used to."