Primorsky District, Arkhangelsk Oblast Novgorod Republic. Novgorod merchants reached the White Sea in the 13th century; the Pomors, who inhabit the White Sea coast now, are the descendants of the original Novgorod population. After the fall of Novgorod, the area became a part of the Grand Duchy of Moscow. Until the 1700s, Arkhangelsk was the main trading harbor for the sea trade of Russia and Western Europe, and the Northern Dvina was the main trading route connecting central Russia with Arkhangelsk. The traditional occupation of the population of the Dvina Bay was fishery and trade. Peter the Great drastically changed the situation, by founding
Onega River of the Onega is notable for the rapids, spread everywhere between Kargopol and Gorodok, and also located downstream from Porog (the name "Porog" means "a rapid"). The Onega basin area has an important historical and cultural significance. Kargopol is one of the oldest cities in Russian North (the traditional foundation date in the 12th century, first mentioned in the 14th century), and it still contains a big number of architectural and historical monuments. Oshevensk on the left bank of the Onega is the location of the former Alexandro-Oshevensky Monastery. Another historically important monastery in the Onega basin is the Kozheozersky