Piracuruca is a municipality in the state of Piauí in the Northeast region of Brazil. The municipality contains part of the 1,592,550 hectares Serr…Piracuruca is a municipality in the state of Piauí in the Northeast region of Brazil. The municipality contains part of the 1,592,550 hectares Serra da Ibiapaba Environmental Protection Area, created in 1996. The municipality contains 74% of the 7,700 hectares Sete Cidades National Park, created in 1961.