[Porsche-O-Phile]

I completely agree with you - most folks here don't understand that most of the L.A. basin is actually a desert biome. And yes, virtually all the water is brought in thanks to the aquaduct system envisioned by William Mulholland, although there is a certain amount of natural water here also. Certainly not enough to sustain a city of the size we've created, but some.

By all rights, there shouldn't be much settlement here in the L.A. basin, but (like some of the other places) it seemed like a good idea at the time and once again, it's an example of how dependence on technological innovation encourages building in areas that would otherwise have no hope of supporting human habitation.