The Bilsa Biological Station protects the last remnants of rainforest in the province of Esmeraldas. It is located approximately 30 km from Quinindé and 30 km from the coast, and covers 3000 hectares of which 80% is primary forest and 20% is secondary forest.
Bilsa is situated within a larger conservation area, the Mache Chindul Ecological Reserve, which has an extension of 120.000 hectares . The whole area is part of the Chocó-Darien bio-region (of Central and South America), which is considered one of the 25 hot spots in the world for its great biodiversity and high level of endemism of flora/fauna species.

The photographs presented here were taken during January 2004.

Forest stream, habitat of Hypsiboas picturatus and centrolenids	Interior of the forest at Bilsa