geographical slanders/euphemisms

[Anne Gilbert]

 Larry:

> which brings up "Acapulco gold", one of many "x gold" collocations
> referring to such valuables as oil ("black gold", "Texas gold") as
> well as to marijuana and other treasured items I can't think of at
> the moment.

Huh?  I thought "liquid sunshine" was a Pacific NW specialty(referring to
our frequent and often seemingly endless winter rains).
Anne G