Brown coal mining limits in North Bohemia within the currently demarcated limits, e.g. Horní Jiřetín and Černice. This article focuses almost exclusively on the limits as they apply to mines in the Mostecko region roughly between the towns of Most and Litvínov operated by Czech Coal. During the course of the 20th century, the North Bohemian Basin, an area of over 1100 km2, was heavily mined from Kadaň to Ústí nad Labem for brown coal for burning in a large number of thermal power stations, electrical power stations and factories. In the 1970s and 1980s, the mining increased on a massive scale, and because of the expansion
Brown trout in Scotland, peal in the West Country, mort in North West England, and white trout in Ireland. The lacustrine morph of brown trout is most usually potamodromous, migrating from lakes into rivers or streams to spawn, although evidence indicates stocks spawn on wind-swept shorelines of lakes. "S. trutta" morpha "fario" forms stream-resident populations, typically in alpine streams, but sometimes in larger rivers. Anadromous and nonanadromous morphs coexisting in the same river appear genetically identical. What determines whether or not they migrate remains unknown. The scientific name of the brown trout is "Salmo trutta". The specific epithet "trutta" derives from the