n.a group of islands in northeastern West Indies (east of Puerto Rico) discovered by Christopher Columbus in 1493; owned by United States and Britain

Virgin islands
Virgin islands
[Trees of Puerto Rico and the Virgin Islands]. [Spanish]
Scientific survey of Porto Rico and the Virgin Islands.
ecological life zones of Puerto Rico and the U.S. Virgin Islands
The ecological life zones of Puerto Rico and the U.S.Virgin Islands
Neotectonics of Puerto Rico and the Virgin Islands, northeastern Caribbean, from GPS geodesy
Botany. (Book Reviews: Common Trees of Puerto Rico and the Virgin Islands)
Coral disease following massive bleaching in 2005 causes 60% decline in coral cover on reefs in the US Virgin Islands
Effects of forest clearing and succession on the carbon and nitrogen content of soils in Puerto Rico and US Virgin Islands