Mayagüez (mah-yah-GWES) or (IPA: [maɪaˈgwɛs]) is the eighth-largest municipality of Puerto Rico. Also known as "La Sultana el Oeste" (The Sultaness of the West) or "Ciudad de las Aguas Puras" (City of Pure Waters), the Spanish crown gave it the title of "La excelente ciudad de Mayagüez", Mayagüez is located in the center of the western coast on the island of Puerto Rico.