Tambopata National Reserve is a nature reserve in the Amazon Basin south of the Madre de Dios River. It was created on January 26, 1990 to protect the forests adjacent to the rivers Heath and Tambopata. The reserve is noted for its native flora and fauna, with 165 species and 41 families of trees, 103 species of mammals, 1300 species of butterflies and 90 species of amphibians. The reserve has an area of 1,478,942 hectares (3,654,550 acres).