Arkhangelsk Oblast (the Northern Dvina), and the Mezen Bay (the Mezen and the Kuloy). Solovetsky Islands, as well as a number of smaller islands, are located in Onega Bay. Onega Bay and the Dvina Bay are separated by the Onega Peninsula. The Mezen Bay is separated from the main body of the White Sea by Morzhovets Island. Other major islands in the oblast include Shogly Island, Zhizgin Island, Yagry Island, Lyasomin Island, Layda Island, Nikolskiy Island, and Mudyugskiy Island. Almost all of the oblast is covered by taiga, the coniferous forest dominated by pine, spruce, and larch. Large areas in the middle
Arkhangelsk Oblast most of these became unprofitable and have been destroyed. In the 1970s and 1980s the aviation was active, with all district centers connected to Arkhangelsk with regular flights, Kotlas being the second important hub. Currently, it has almost disappeared. There are two airports in Arkhangelsk, but regular local flights are only carried out to the destinations which do not have rail or road connections, such as Novaya Zemlya, Solovetsky Islands, the Nenets Autonomous Okrug, the Onega Peninsula, and the north of the oblast. The exceptions with functioning airports are Mezen, Leshukonskoye, and Onega. The oil transport system, Baltic Pipeline System,