Rincon Rainforest - A conservation project to purchase and merge additional lands bordering the park area. - http://janzen.sas.upenn.edu/caterpillars/RR/rincon_rainforest.htm
Rincon de la Vieja National Park - Description of the volcano and park attractions, driving directions. - http://www.worldheadquarters.com/cr/protected_areas/parks/rincon_de_la_vieja/
Rincon de la Vieja - Description of volcano, including recent eruptions, history, and photos. - http://volcano.und.nodak.edu/vwdocs/current_volcs/costa_rica/rincon.html