Cumbria, county, northwestern England; Carlisle is the administrative center. Cumbria incorporates most of the scenic Lake District, an area that includes the Cumbrian Mountains. Lowlands occupy the northern, eastern, and southern fringes of the county. Agriculture, especially sheep raising and dairying, is important. Coal, iron ore, and gypsum are mined. Carlisle is the chief commercial center. Cumbria was formed in 1974 with the merger of the former counties of Cumberland and Westmorland and parts of Lancashire and Yorkshire (West Riding).