The Monteverde Conservation League (MCL) is a non-profit organization dedicated to the conservation of the tropical forest. Our mission is to Conserve, Preserve, and Rehabilitate Tropical Ecosystems and their Biodiversity.

Founded in 1986 in Monteverde, the MCL began a land purchase campaign to conserve the tropical forest. Currently, our organization has achieved the formation of the largest private reserve in Costa Rica: The Children's Eternal Rain Forest (CERF). This has been possible thanks to the support of children, adults, schools and organizations around the world.

At the organization level, the MCL has 70 active members who are involved in an Annual
Meeting. The composition of the members as to nationalities, background and philosophy is diverse, but all with the common goal to conserve the forest.

At the administrative level, the MCL has three priority areas: Protection and Management, Environment and Human Development, and Research and Applied Technology.

The MCL has carried out various projects in the area of influence and within CERF. Through the reforestation program, "Forest in Farms" project and the "Guacimal Watershed" project we have planted nearly 600,000 trees as windbreaks, watershed restoration and forest connection in the Pacific slope. On the other hand, we have planted over 100,000 trees in the Atlantic slope along forest belts and forest connections. Research projects on endangered species are being carried out within CERF.