The Formigas (pron. IPA: [fuɾ'migɐʃ]) are islets of the Azores, Portugal. For human anatomy see Islets of Langerhans An islet is a small Island. The Azores ( Açores ɐˈsoɾɨʃ or) is a Portuguese Archipelago in the Atlantic Ocean, about 1500 km (950  mi) from Portugal, officially the Portuguese Republic (República Portuguesa is a country on the Iberian Peninsula. Located 43 km northeast of Santa Maria Island and southeast of São Miguel Island, they have special biological interest and a natural reserve with 35. The island of Santa Maria ( pron 'sɐ̃tɐ mɐ'ɾiɐ Portuguese for Saint Mary) is an island located in the southeastern part of the Azores São Miguel Island ( pron sɐ̃ũ mi'gɛɫ Portuguese for Saint Michael nicknamed "The Green Island", is the largest and most populous Foundations of modern biology There are five unifying principles nature reserve ( natural reserve, nature preserve, natural preserve) is a Protected area of importance for Wildlife, flora 42 km². The size of the emerged islets is about 9,000 m². The islets are part of the eastern group of the Azores archipelago. The islets are in the northwest part of a 13 km bank of extension and 5. 5 km wide. The island runs from northwest to southeast. The island does not have any plants or animals. Dollabarat, a reef is situated 3 nautical miles (5 km) southwest from the Formigas Islets. The Dollabarat Islets are situated 5 km (3 nautical miles south southeast of the Formigas Islets in the Azores archipelago The coastline is about 22 km (12 nm), visibility is exceptional.
The nature reserve was formed in 1988 from a decree of the Azorean Parliament (Regional Legislative Decree #11/88/A of April 4).
Formigas are very helpful for navigation. The visibility around the lighthouse is 19 km (10 nmi). During foggy days and without radar, the lighthouse can be used from the Dollabarat.
Formigas is Portuguese for Ants, because the islets are many and small, some being pure rocks in the ocean. Ants are social Insects of the family Formicidae and along with the related families of Wasps and Bees belong to the order An ocean (from Greek, ''Okeanos'' (Oceanus) is a major body of saline water, and a principal component of the Hydrosphere. The islets are useful for navigation, visible up to 19 km away during sunlight, but in foggy days one can run aground without seeing the lighthouse (built in 1883) of the islets predicting the dangers of the islets. Surrounding the islets there are several hidden dangers; the depth of the islets group is never deeper than 30 meters, with the exception of a small point in the southwest, the Dollabarat, where there is only a small area that lies 3 metres deep. The rocks extend about 700 m from north and south of the lighthouse. The Decree of March 2, 1895 for the general meeting of the Autonomous District of Ponta Delgada initiated the construction of lighthouses in the islands of São Miguel and Santa Maria. A small uncovered wharf was built in the summer of 1948. The lighthouse was modernized and rebuilt in 1962 by a shipmaker Almirante Schultz. The lighthouse is located in the southern part of the Formigas in a zone that is 3 m above the mean sea level. The height is 19 m and the top of the lighthouse sits 22 m above sea level. The lighthouse was updated, with acetylene substituted for the photovoltaic feed. The lighthouse is one of the ex-libris of Azorean lighthouses, marking the characteristic profiles in the oceanic landscape of the Formigas. It can be sighted around 22 km (12 nmi) of distance. During the days of normal visibilities, the lighthouse can be seen from the southeastern part of the island of São Miguel and the northeastern part of the island of Santa Maria.
One of the smallest but one of the highest islets lies only 11 meters above the sea level, and it’s named "Formigão" (big ant). The two biggest islets are only 180 meters long and 40 meters wide.