Crossword Genius

A mountaintop of heather leads to natural spring coming from Wyoming, for example (9)

Ross

I believe the answer is:

americans

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'wyoming for example' is the definition.
I can't tell whether this definition defines the answer.

'a mountaintop of heather leads to natural spring' is the wordplay.
'a mountaintop of heather' becomes 'america' (I can't justify this - if you can you should give a lot more credence to this answer).
'leads to' suggests taking the first letters.
The initial letters of 'natural spring' is 'ns'.
'america'+'ns'='AMERICANS'

'coming from' acts as a link.

Can you help me to learn more?

(Other definitions for americans that I've seen before include "across the pond?" , "New Yorkers, e.g." , "Yanks" , "Rains came (anag.)" .)

I've seen this clue in the Irish Times and the Irish Times (Crosaire).
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