La Selva's areas of primary forest are bordered on the north, east and west by major river boundaries and to the south by the 46,000 ha Braulio Carrillo National Park.
Biological diversity is extremely high.
The fauna is equally rich. The central dining room seats 72, and an equal number can be accommodated in a diversity of housing including dormitories and duplex cabins. The Station is connected to the national electric system and, in addition, has backup emergency power generators. The forest is on a 50 x 100 m grid system that is made accessible by 40 km of maintained trails. In excess of 1000 publications are attributable to La Selva and they range in scope from studies on biological diversity to the physical chemistry of soils.