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Established in 1923, the Barro Colorado Nature Monument (BCNM) is located in the middle of the Panama Canal and is the largest forested area in the Panama Canal waterway. Barro Colorado Island (BCI), together with five adjoining mainland peninsulas, forms the 5,400-hectare nature monument. Administered by the Smithsonian since 1946, Barro Colorado is home to one of the most famous biological research facilities in the world. Not surprisingly, the island’s flora and fauna have been more thoroughly studied then any other neo-tropical area of comparable size on Earth.