Arkhangelsk Oblast eventually spread well beyond the Arkhangelsk Region. The Mezen horses, bred in the Mezen River valley, are rather small but suitable for difficult work and easily survive cold winters. The area of current Arkhangelsk Oblast has always been located on the trading routes connecting central Russia to the White Sea, and, in fact, in the 17th century the White Sea was the main sea export route for Russia. The whole course of the Northern Dvina is navigable, as well as the lower course of some of its tributaries, most notably the Vychegda, the Vaga, and the Pinega. The Mezen is
Port Clarence Bay Port Clarence Bay Port Clarence Bay is a waterway in the U.S. state of Alaska. It has the only harbor and safe anchorage for large vessels in Seward Peninsula. The bay is located 25 miles southeast of York. It is a large body of comparatively deep water, nearly circular in outline, and cut off from the sea by a long, low sand spit, which terminates in Point Spencer at the entrance to the bay. Along the north side of Port Clarence Bay, there is a shallow lagoon, separated from the bay by a narrow sand spit. This lagoon extends several