Sierra de Cayey

mountains, Puerto Rico

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June 24, 2026

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The Sierra de Cayey is a mountain range in central Puerto Rico, characterized by peaks rising to approximately 3,000 feet (900 meters). This range transitions gradually from the Cordillera Central, which forms the interior of the island and contains Puerto Rico's highest peak, Cerro de Punta. The Sierra de Cayey is known for its twin peaks, the Teats of Cayey, which are a result of volcanic activity. Rivers originating in this region, such as the Loíza, are significant for hydroelectric power and water supply. The town of Cayey, located within these mountains, was historically a Spanish military post due to its cooler climate.12

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Cordillera Central
…Cordillera Central and the lower Sierra de Cayey farther east, the peaks of which rise to 3,000 feet (900 metres). The central mountains have more granitic outcrops than do the western mountains. The rivers of both the Cordillera Central and the Sierra de Cayey, notably the Arecibo, La Plata, and…
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…Cordillera Central and the lower Sierra de Cayey farther east, the peaks of which rise to 3,000 feet (900 metres). The central mountains have more granitic outcrops than do the western mountains. The rivers of both the Cordillera Central and the Sierra de Cayey, notably the Arecibo, La Plata, and…
Read More