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
Cannel coal the Drake Oil Well in 1859, made petroleum a cheaper raw material for making kerosene and drove the American oil shale industry out of business. Cannel coal is brown to black oil shale. It comes from resins, spores, waxes, and cutinaceous and corky materials of terrestrial vascular plants, in part from Lycopsid (scale tree). Cannel coal was accumulated in ponds and shallow lakes in peat-forming swamps and bogs of the Carboniferous age under oxygen-deficient conditions. Thus cannel coal seams are shallow and often found above other deposits, while the coal itself, being rich in oils, burns long, with a bright