63°33′08″N 41°33′27″E / 63.5520861°N 41.5576361°E
The Siya Monastery of St. Antonius (Antonievo-Siysky Monastery, Russian: Антониево-Сийский монастырь) is a Russian Orthodox monastery that was founded by Saint Antonius of Siya deep in the woods, 90 km (56 mi) to the south of Kholmogory, in 1520. Currently the monastery is located in Kholmogorsky District of Arkhangelsk Oblast in Russia, inside the nature protected area, Siya Zakaznik.
Arkhangelsk Oblast (Russian: Архангельская область, IPA: [ɐrˈxanɡʲɪlʲskəjə ˈobɫəsʲtʲ]) is a federal subject of Russia (an oblast). It includes the Arctic archipelagos of Franz Josef Land and Novaya Zemlya, as well as the Solovetsky Islands in the White Sea. Arkhangelsk Oblast also has administrative jurisdiction over the Nenets Autonomous Okrug (NAO). Including the NAO, Arkhangelsk Oblast has an area of 587,400 square kilometres (226,800 sq mi), it is the largest of first-level administrative divisions in Europe. Its population (including the NAO) was 1,227,626 as of the 2010 Census.
The city of Arkhangelsk, with a population of 301,199 as of the 2021 Census, is the administrative center of the oblast. The second largest city is the nearby Severodvinsk, home to Sevmash, a major shipyard for the Russian Navy. Among the oldest populated places of the oblast are Kholmogory, Kargopol, and Solvychegodsk; there are a number of Russian Orthodox monasteries, including the Antoniev Siysky Monastery and the World Heritage Site of the Solovetsky Islands in the White Sea.