Guajataca River
 The Rio Guajataca is a river on the island of Puerto Rico. It is located in the northwest coast of the island. It flows from the south and drains into the Atlantic Ocean. Guajataca River has a length of approximately 25.5 miles (41 kilometres) with its origin in the municipality of Lares Puerto Rico at an altitude of approximately 1600 feet (488 metres) above sea level. It crosses the municipalities of Lares San Sebastián and Isabela forming Guajataca Lake on its path.