Montblack wrote:

("Mike Rapoport" wrote)

Pet peeve...its Sierra not Sierras, the word is already plural.



What's the singular? Siera?

Rocky Mountain
Rocky Mountains
Rockies

?????? Mountain
?????? Mountains
Sierras


Montblack



Sierra is Spanish for "Mountain Range."

The word Sierra is not plural, but it does refer to all the mountains in
the range. You would use Sierras to refer to multiple mountain ranges,
not multiple mountains.

HTH