The site is home to the San Miguel Biological Station which was developed to promote and support teaching, research, and environmental education and has facilities that include classrooms, laboratories and a reference library.

The reserve was created in 1963 due to a campaign started by Nils Olof Wessberg and was the first major conservation project in the country.

Their bodies are buried at the Nicolas Wessberg Natural Reserve which was the original farm they bought when first arrived in the Montezuma area.

Among the dry forest specimens found we can mention the "Pochote" (Bombacopsis quinata), the "Guacimo" (Guazuma ulmifolia), and the "Indio Desnudo" (Bursera simaruba) but there are many other trees present that are native to the whole Nicoya Peninsula area.

Among the evergreens is worth mentioning the tall and impressive "Espavel" (Anacardium excelsum), the "Guacimo Colorado" (Luehea seemanii), and the beautiful "Cortez Amarillo" (Tabebuia ochracea) which bursts into a yellow spectacle of flowers during the dry months of March and April.