Caldeirinha de Pêro Botelho
GRA 2
39º 02'23''N 28º 01'46''W
“Caldeirinha de Pêro Botelho” is a volcanic pit, accessible through the crater of a recent spatter cone, probably of Holocene age. The pit is 25 m deep and has a small chamber of 24.6 x 7.4 m on its bottom. This pit was first explored in 1964 by the speleological society “Os Montanheiros”.
