List of National Natural Landmarks in Puerto Rico
Encyclopedia
From List of National Natural Landmarks, these are the National Natural Landmark
National Natural Landmark
The National Natural Landmark program recognizes and encourages the conservation of outstanding examples of the natural history of the United States. It is the only natural areas program of national scope that identifies and recognizes the best examples of biological and geological features in...

s in Puerto Rico
Puerto Rico
Puerto Rico , officially the Commonwealth of Puerto Rico , is an unincorporated territory of the United States, located in the northeastern Caribbean, east of the Dominican Republic and west of both the United States Virgin Islands and the British Virgin Islands.Puerto Rico comprises an...

. There are 5 in total,.
Name Image Date Location County Description
1 Bano de Oro Natural Area Puerto Rico The only contiguous area in Puerto Rico that contains subtropical wet forest, rain forest, dwarf forest, and Pterocarpus.
2 Cabo Rojo
Cabo Rojo, Puerto Rico
Cabo Rojo is a municipality situated on the southwest coast of Puerto Rico and forms part of the San Germán–Cabo Rojo metropolitan area as well as the larger Mayagüez–San Germán–Cabo Rojo Combined Statistical Area....

Puerto Rico An excellent example of a tombolo
Tombolo
A tombolo, from the Italian tombolo, derived from the Latin tumulus, meaning 'mound,' and sometimes translated as ayre , is a deposition landform in which an island is attached to the mainland by a narrow piece of land such as a spit or bar. Once attached, the island is then known as a tied island...

 with two sand spits.
3 Mona
Mona, Puerto Rico
Mona is the third largest island of the archipelago of Puerto Rico, after the main island of Puerto Rico and Vieques. It is the largest of three islands located in the Mona Passage, a strait between the Dominican Republic and Puerto Rico, the others being Monito Island and Desecheo Island...

 and Monita
Monito Island
Monito Island is an uninhabited island about 5 kilometers northwest of much larger Mona Island. Monito is the masculine diminutive form of Mona in Spanish. It is one of three islands in the Mona Passage, and part of the Isla de Mona e Islote Monito barrio, a subdivision of the municipality of...

 Islands
Puerto Rico Sea caves on these islands are some of the largest, most extensive and most unusual in the world.
4 Puerto Mosquito Puerto Rico Considered the best example of a bioluminescent bay in the United States.
5 Rio Abajo Forest Puerto Rico An excellent example of karst topography with numerous sinkholes and well-developed tower karst.
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