Heavy industry expanded in the 18th century, when a forge at Congreve was turning out 120 tons of iron a year, and in the 1820s the mill below Bull Bridge was used for rolling iron. However, this industry tailed off as the Black Country ironworks outstripped it. Extraction of building materials grew in Victorian times, with the Littletons operating quarries at Wolgarston, Wood Bank, and Quarry Heath, as well as a sand pit at Hungry Hill, Teddesley, and a brickyard in Penkridge.