Is it Sierra or Sierras? :)

Sooo the age old question: Is it the Sierra or Sierras?

I know that Sierra is technically right, but I still always says Sierras.

Sierra means “range of mountains” so it’s already plural. I have no defense, it just makes more sense to my english speaking brain to say Sierras


Yesss I totally had to retrain my brain to say Sierra!