 Finally, a switchback was built from the main line between Red Lion and Rittenhouse Gap in the late 1880s, which served the hematite mines near Seisholtzville.Another charter amendment of May 26, 1863, allowing the railroad to extend to Bath (northeast of Catasauqua and terminus of the Bangor and Portland Railroad) was never utilized.Most of the stock of the Catasauqua & Fogelsville was bought by the Reading in 1890, as iron ore from the Mesabi Range began to put pressure on local iron mining operations.