or North Bottnia (Swed. Norrbotten), a lan or province of Sweden, lying between N. Lat. 65, and 69, E. Long. 15.15, and 24.10, is bounded on the N. and W. by Norway, S. by the lan of Umea, and E. by the Gulf of Bothnia and Russian Lapland; area, 32,934 square miles. A great part of this country, lying to the N., is occupied by the largest plain in Sweden. This extends from the foot of the Kielan Mountains, which separate it from Norway, to the shore of the Gulf of Bothnia; and, with the exception of a few small hills, it is entirely flat, covered here and there with marshes and small lakes. At the foot of the mountains the land is 1300 feet above the sea; but it gradually slopes downwards, and about midway, between the mountains and the sea, has only an elevation of 400 feet. In the higher portions of this plain dwarf birches are almost the only growth; farther down these appear as trees, and pines also grow; and near the sea the whole country is covered with forests, except the banks of the rivers, where the soil is cultivated. This plain extends from the Russian frontier as far to the S.W. as the Lulea, beyond which river the country consists partly of mountains and partly of plains and valleys. The Kielan range, which here attains its highest elevation in Mount Sulitelma, sends off numerous ridges towards the E., which are separated by wide valleys. The greater part of this country is covered with wood, except in the more lofty regions. Near the Bothnian Gulf, however, farming is carried on to some extent. The principal rivers of Pitea are—the Tornea, with its affluent the Muonio, forming the boundary between Sweden and Russia; the Calyx, the Lulea, and the Pitea; all flowing from the mountains into the Gulf of Bothnia, and most of them flowing through numerous lakes. The capital of the lan is Pitea, a town of 1545 inhabitants, which stands on an island at the mouth of the river of the same name, and has a harbour and docks. Lulea and Tornea are the chief other towns. Pop. of the lan (1855), 60,108.