published by caminhos geológicos, on this link a valuable pamphlet summarizes the history of the sugar loaf and other similar granite formations in rio de janeiro.

visitors interested in the geology of the sugar loaf will find the paper pão de açúcar, rj cartão postal geológico do brasil (sugarloaf, rj geological postcard from brazil), by luiz carlos da silva and antônio josé lopes de andrade ramos quite interesting and easy to read on this page.