Northumberland role in the Industrial Revolution from the 18th century on. Many coal mines operated in Northumberland until the widespread closures in the 1970s and 1980s. Collieries operated at Ashington, Bedlington, Blyth, Choppington, Netherton, Ellington and Pegswood. The region's coalfields fuelled industrial expansion in other areas of Britain, and the need to transport the coal from the collieries to the Tyne led to the development of the first railways. Shipbuilding and armaments manufacture were other important industries before the deindustrialisation of the 1980s. Northumberland remains largely rural, and is the least-densely populated county in England. In recent years the county has
Brown County, Indiana offering many advantages: a lodge, cabins for rent, picnic areas, a swimming pool, and miles of trails. And at present there is Yellowwood State Forest, the Hoosier National Forest, Lake Monroe and Lake Lemon. According to the 2010 census, the county has a total area of , of which (or 98.53%) is land and (or 1.47%) is water. Brown County is tied with Benton County as the least densely populated county in Indiana. However, Brown County has by far the highest concentration of forested land of any of Indiana's 92 counties with nearly 90% coverage and almost no large farms