Putumayo
a province of Colombia, in the S. E., bordering on Brazil, Ecuador and Peru, watered by the rivers of the same name, which is a tributary of the Amazon. The district is rich in rubber, exploited by British syndicates, driven out of existence in 1912 consequent on exposures of cruelty to the natives. Part of the province is claimed by Ecuador. The Putumayo river crosses the equator and flows 1150 miles before being received into the Amazon in Brazil. Pop. about 35,000.