Captaincies of the Azores as equal as the other islands, and flowed from a feudal hierarchy, that only improved after the reforms of Mouzinho da Silveira and the extinction of the constitutional monarchy. The following were the doantary captains of the islands: Captaincies of the Azores The Captaincies of the Azores () were the socio-political and administrative territorial divisions used to settle and govern the overseas lands of the Azores by the Kingdom of Portugal. These territories, a segment of the Captaincies of the Portuguese Empire, which usually conformed to the individual islands, allowing the stewardship of the King through the Donatary and Captaincy
Hydrothermal vents and seamounts of the Azores waters of the Azores: These sites, with the exception of the Moytirra system, are located in the southern part of the archipelago, and have been investigated by national and international scientists. The isolated Dom João de Castro Bank is also considered in this group; located between São Miguel and Terceira, the seamount is one of the highest independent seamounts in the archipelago and home to a thriving marine volcanic habitat. In 2010, a shallow hydrothermal field was discovered off the Ponta da Espalamaca, on the island of Faial, showing evidence of de-gasification. Efforts are being made to classify these areas