published by the instituto municipal de urbanismo pereira passos, with the prefecture of the city of rio de janeiro, this map shows the maciço da tijuca.

part of the instituto chico mendes de conservação da biodiversidade - icmbio, the centro nacional de pesquisa e conservação de cavernas is the brazilian national institute in charge of the conservation and study of the national caves, and makes further information available on this link.

the sociedade brasileira de espeleologia - sbe (brazilian speleological association - sbe) maintains webpage here with a database for rio de janeiro's main caves (listed under 'região sudeste').