La Cordillera Reef Nature Reserve in the context of "Culebra, Puerto Rico"

The geography of Puerto Rico encompasses the geographical features of Puerto Rico, a Caribbean archipelagic and island nation centered around a collective identity based on its land, history, ethnicity, culture, and language, and organized as a self-governing unincorporated territory of the United States. Located between the Greater and Lesser Antilles in the northeastern Caribbean Sea, east of Hispaniola, west of Saint Thomas, north of Venezuela, and south of the Puerto Rico Trench, it consists of the eponymous main island of Puerto Rico and 142 smaller islands, islets, and cays, including San Juan Islet in the north, Vieques and Culebra islands in the Virgin Islands, and Palominos island and Icacos cay in La Cordillera nature reserve in the east, Caja de Muertos island in Caja de Muertos reserve, and Caracoles and Media Luna cays in La Parguera reserve in the south, and Mona, Monito, and Desecheo islands in the Mona Passage in the west.

Measuring 177 km (110 mi; 96 nmi) in length and 65 km (40 mi; 35 nmi) in width with a land area of 8,868 sq km (3,424 sq mi), the main island of Puerto Rico is the 4th largest in the Caribbean, 29th in the Americas, and 81st in the world, making it the 170th largest country or dependency by surface area. With 3.2 million residents, it is also the 4th largest in the Caribbean, 4th in the Americas, and 31st in the world, making it the 136th largest country or dependency by population.

Palominos Island (Spanish: Isla de Palominos), most commonly known as Palomino, is a small island located off the coast of the barrio of Cabezas in the municipality of Fajardo in the northeast of the main island of Puerto Rico. It forms part of a small chain of cays, reefs, and skerries protected by the La Cordillera Reef Nature Reserve. The island is home to El Conquistador Resort hotel.

Icacos Cay (Spanish: Cayo Icacos) is the largest uninhabited cay forming part of a small chain of cays, reefs, and skerries located off the coast of the barrio of Cabezas in the municipality of Fajardo in the northeast of the main island of Puerto Rico. Along with Palominos island, it is part of the La Cordillera Reef Nature Reserve and under the jurisdiction of the Department of Natural Resources and Environment. Icacos is a fifteen-minute water taxi ride from Fajardo. The cay is a popular snorkeling and beach tourism destination.

For some time, there was a limestone quarry on the southern part of the island, with a short railroad system to shuttle limestone from the quarry to the pier.