published by the instituto terra brasil, an institute dedicated to the preservation of the environment, ecotourism, and education, publishes on this link a map of the caves in the tijuca forest.

published by mapstore, this is a map showing all the protected areas in the greater metropolitan rio de janeiro.  

those interested in visiting rio de janeiro's urban forests and green areas in general should also read inea's booklet on forest-fire prevention and safety guidelines, on this link.  

provided by the ministry of environment (ministério do meio ambiente), on this page is a precious tool to create a variety of customized environmental maps, available for use by all who are interested.