Puerto Rico Guest® A Travel & Sports®, Inc. MasterGuide™ to Puerto Rico, © 2008 Select Language English | Español | Deutsch | Francais | Portugues Expert Help | Email this page | 34872 | Packages / Coupons / Auctions | Create Your MasterGuide™ | Advertise Mona Island Lighthouse > Puerto Rico > Cabo Rojo: Mona Island > Attractions & Sights 787-999-2200 787-999-2295FX www.drna.gobierno.pr Established in 1900, deactivated in 1976. The ruins may be found in the southeast corner of the Island. Steel structure designed by Alexendre-Gustave Eiffel, listed on the National Historic Register. All photos © by their respective owners. Photos may not be reproduced in any form without the owners written permission. Symbol Key: Sponsors, Attractions & Sights.