The Emerald Triangle is a geographic region. And, at least in California, it’s only known for one industry (weed).
I’d argue that, at least to a Northern Californian, if somebody says “I work in the Emerald Triangle wink wink”, it would be understood to mean “I grow and sell marijuana in Northwestern California.” So, “Emerald Triangle” could be considered a metonym for the California marijuana industry, at least in some circles.
Macquarie Street [Sydney, Australia]. Location of the state legislature and other public buildings.
The Australian, 27 Dec 2008
The Australian, 23 Aug 2008
Pull her head in?
Almost every post about Australia or by an Australian reveals a locution I’ve never heard before.
Yeah, but if someone says, “I work in Napa Valley”, you expect them to be making wine. I don’t know if Napa Valley is used this way very often in real life, but Napa Valley is so thoroughly identified with wine that the location really does tell you the industry. Maybe not the other way around though–you could say you work in Wall Street even if your office is in Chicago, but you’d never say Napa Valley if you aren’t actually in the Napa Valley.
That is true, but a very different branch of the “fashion” industry from Carnaby Street. Saville Row is a metonym for upscale (and conservative) men’s tailoring. Carnaby Street, in the “swinging London” era, and for a bit after, meant miniskirts, caftans and other “young” and disposable fashion like that.
Also, Colophon mentions Harley Street as referring to medicine, but it does not mean any medicine, it is, specifically, high end private medicine. Harley Street is the antithesis of the NHS (even though many - maybe even all - Harley Street doctors also practice within the NHS).
Another London one might be Billingsgate, associated with the seafood industry and extreme verbal profanity (it use to be the site of the fish market, and the fish porters were noted for their swearing - can you blame them?). Billingsgate came, pretty much, to mean foul language (though the expression is a bit dated now).
Yeah, you wouldn’t consider Brooks Bros. to be fashion. It’s just clothes, an executive’s uniform. That’s what Savile Row is like.
Not sure if this fits but Ambridge PA was named for the United States Steel American Bridge Division which was/is located there. There are some other examples like that in Southwestern PA from the steel industry and some on the northeastern part of the state from anthracite coal.
Do The Archers know this?:eek:
Wouldn’t surprise me. But get a Brit to admit that something in the colonies got its name from somewhere or something else? Not a chance, the bloody lobsterbacks. 
Alcoa TN is know for making aluminum and Copperhill TN used to have a very big copper mine but it closed a while back.