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Lehigh(lē`hī), river, 103 mi (166 km) long, rising in NE Pa. and flowing generally SE to the Delaware River at Easton. It flows through the Lehigh Valley, where rich anthracite deposits made AllentownAllentown,
city (1990 pop. 105,090), seat of Lehigh co., E Pa., on the Lehigh River; inc. as a borough 1811, as a city 1867. The largest city in the agricultural and industrial Lehigh Valley, it is a commercial, financial, and government center.
..... Click the link for more information. and BethlehemBethlehem,
city (1990 pop. 71,428), Northampton and Lehigh counties, E Pa., on the Lehigh R. near Allentown and Easton; inc. as a city 1917. Local manufacturing, once dominated by the giant Bethlehem Steel Corp., is now more diversified.
..... Click the link for more information. (a famed steel producer) heavy industrial centers from the mid-19th through the mid-20th cent. High-tech industries are now important, and the valley is also agricultural.