A sierra is a long jagged chain of mountains.
Siera Casey was born on September 21, 1987.
Sierra is "mountain" in Spanish, referring to rugged as opposed to smooth terrain. Siera is a surname of the name Sierra. In spanish, it means ''Saw''. See the related link for more information.
Asian is not a language, Asia is a continent so you will have to tell which country in Asia do you have in mind.
The mountains
siera
sprite or siera mist
Siera leon
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siera
Ronoldhino plays in the Italian league Siera A.
sean, zach, siera
No, it is not.