Arkhangelsk Oblast the main 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. Plesetsk Cosmodrome is one of three spaceports in Russia (the other two are Kapustin Yar in Astrakhan Oblast and Yasny in Orenburg Oblast). Arkhangelsk Oblast, which includes Nenets Autonomous Okrug, borders Kirov Oblast, Vologda Oblast, the Republic of Karelia, the Komi Republic, and the White, Pechora, Barents and Kara seas. Cape Fligely in Franz
Astrakhan Oblast south-southwest of Orenburg, to reduce any possible seismic destruction to nearby towns in the Volga delta including Astrakhan. At that time, the natural gas fields near Astrakhan, which are at a deplth of 3900 to 4,100 meters, could contain as much as 6 trillion cubic meters, which is an amount similar to Urengoy. In 2017, the Astrakhanskoye field, which is an area of 100 km by 40 km in the middle of the Astrakhan arch and is 60 km northeast of Astrakhan, is the ninth largest in Russia and the largest in European Russia with an estimated gas in place