The old buildings and nature compound within the then Cinchona Forest Reserve (CFR) built in 1908 by the American researchers is open for camping and retreat activities. Said old buildings were later used as the garrison of the Japanese Imperial Army during World War II. The site has great historical values among the Bukidnons (tribe) who valiantly fought and defended their sacred ground. In 1943, the CFR including barangay Kaatoan in Lantapan, Bukidnon were made as Japanese Garrisons and took possession of the area until 1945.
During this year, a joint American and Filipino soldiers coming from the municipality of Talakag, Bukidnon engaged in Japanese soldiers in a fierce fight at Cinchona. Outnumbered and so with many casualties, the Japanese soldiers retreated and left the place. On the other hand, the Americans momentarily stayed at Cinchona but left in the same year. The seven species of Cinchona, which is the primary source of quinine propagated in September 1936 to treat malaria, can only be seen in this place in the entire Asia.