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
County Galway average receives about 1300mm of rainfall annually, though some areas along the west coast of the county can receive up to 1900mm and beyond. Extreme weather such as blizzards, thunderstorms, flash flooding and hail, though rare, can and do occur, particularly when air masses of continental origin are undercut by more humid and unstable Atlantic flows. One of the least densely populated counties, County Galway harbors a variety of wildlife. The region's biodiversity is best represented by Connemara National Park, situated in the west of the county. The Irish fast food chain Supermac's, which also operates Irish Papa John's Pizza