Lake Kozhozero Lake Kozhozero Lake Kozhozero () is a freshwater lake, located in the south of Onezhsky District of Arkhangelsk Oblast in Russia. It is one of the biggest lakes in Arkhangelsk Oblast and biggest one in Onezhsky District. The area of the lake is , and the area of its basin is . Lake Kozhozero is the source of Kozha River, which is a left tributary of the Onega River and thus belongs to the White Sea basin. The lake is located in the remote area and is not connected to the outside world by any all-season roads. It is notable
Lake Onega Common mammals include elks, brown bears, wolves, red foxes, European hares, blue hares, red squirrels, lynxes, pine martens, European badgers, as well as American muskrats and minks which were introduced to the area in the early 20th century. About 200 bird species from 15 families have been observed in the lake basin. Lake Onega features a large variety of fish and water invertebrates, including relicts of the glacial period such as lamprey. There are about 47 fish species from 13 families; they include sturgeon, landlocked salmon, brown trout, European smelt, grayling, roaches, Crucian carp, whitefishes, char, pike, European cisco, common