Arkhangelsk Oblast the south-west of the Oblast drains into the Kema River which belongs to the basin of the Caspian Sea. The area in the Onega River basin containing the biggest lakes in the oblast, such as Lake Lacha, Lake Kenozero, Lake Undozero, and Lake Kozhozero. The tundra of the Nenets Autonomous Okrug also contains a number of bigger lakes. The river basin of the Pinega is characteristic of the karst, with a number of caves in the region. The White Sea coast within the Oblast is split into the Onega Bay (where the Onega is the major tributary), the Dvina Bay
Arkhangelsk never reached it as the German forces failed to capture either of the two cities and also failed to capture Moscow. Arkhangelsk was also the site of Arkhangelsk ITL, or the Arkhangelsk Labour Camp, in the 1930s and 1940s. Today, Arkhangelsk remains a major seaport, now open year-round due to improvements in icebreakers. The city is primarily a center for the timber and fishing industries. On March 16, 2004, fifty-eight people were killed in an explosion at an apartment block in the city. Arkhangelsk is the administrative center of the oblast and, within the framework of administrative divisions, it also