Panoramic view from the Miradouro das Lagoas in N direction. Lagoa Negra (left side) and Lagoa Comprida (right side) fill two of various maars of Holocene age in the Caldeira das Sete Lagoas on the highland of Flores: the depressions formed due to phreatomagmatic explosions, induced by the contact between magma and groundwater. The hills in the background are Morro Alto (914 m, highest point of Flores) and Pico dos Sete Pés (849 m).