Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

Puerto Rico ( Spanish for '' Rich Port '' ) , officially the Commonwealth of Puerto Rico ( Spanish : Estado Libre Asociado de Puerto Rico , lit . '' Free Associated State of Puerto Rico '' ) and briefly called Porto Rico , is an unincorporated territory of the United States located in the northeast Caribbean Sea , approximately 1,000 miles ( 1,600 km ) southeast of Miami , Florida .
Puerto Rico