 Some of the companies operating coal mines in the area in the 1880s included the Baltimore & Cumberland Coal Co., the Cumberland & Elk Lick Coal Co., the Keystone Coal Co., and the Casselman Coal Co.The W. Bollman and Company Bridge was added to the National Register of Historic Places in 1978.According to the United States Census Bureau, the township has a total area of 45.1 square miles (116.8 km²), of which 45.1 square miles (116.7 km²) is land and 0.1 square miles (0.1 km²) (0.11%) is water.