Although considerable portions of southern and eastern Ohio are wooded, forestry plays a relatively minor role in the state’s economy. More than 95 percent of the state’s annual timber harvest is made up of hardwoods.
Ohio has a long shoreline on Lake Erie, but the lake’s water quality deteriorated so badly as a result of industrial and urban wastes that the fish population declined substantially by the mid-20th century. Efforts by the United States and Canada to clean the lake have begun to show results, and by the early 1990s recreational fishing had resumed. The total value of commercial fishing in Ohio’s waters amounted to just $3.4 million in 2007.
Ohio is one of the leading states in the nation in the production of clay, limestone, sand and gravel, salt, and coal. By value of production the leading minerals are coal, crushed stone, natural gas, sand and gravel, petroleum, lime, salt, and clays. Belmont, Meigs, and Monroe counties are the principal producers of coal, most of which is obtained by modern surface-mining methods. Limestone, found mainly in the western half of Ohio, is open-pit-mined for use in lime, cement, plaster, mortar, flux, and ammonia. Sand and gravel, common in glaciated parts of Ohio, is mined primarily for use in the construction industry. Salt, found in rock form in the eastern and northeastern counties, is mined by the pumping method. Most of the oil fields are in eastern Ohio. Natural gas is found primarily in the eastern counties. "Ohio" © Emmanuel BUCHOT, Encarta, Wikipedia
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