The Monteverde Cloud Forest Reserve (Reserva Biológica Bosque Nuboso Monteverde) is a Costa Rican reserve located along the Cordillera de Tilarán within the Puntarenas and Alajuela provinces. Named after the nearby town of Monteverde and founded in 1972, the Reserve consists of over 10,500 hectares (26,000 acres) of cloud forest, the reserve is visited by roughly 70,000 visitors a year. The Reserve consists of 6 ecological zones, 90% of which are virgin forest.