The former company town of Catoctin Furnace is illustrative of the iron industry that developed in this area. The first of three furnaces was erected in 1774 and two more in the 1850s, including the now preserved “Isabella.” Representative stone, log, and frame workers’ housing remain, including a stone cottage now serving as the Museum of the Iron Worker (c. 1820; 12610 Catoctin Furnace), and the only remaining two-story log house (c.1810, c. 1830; 12607 Catoctin Furnace). The log house once inhabited by the town’s collier is now a museum and interpretative center. Both buildings are operated by the Ca-toctin Furnace Historical Society. Among the items produced here were iron tools, household utensils, and stoves, and its labor force included African American blacksmiths and forge men. Also extant is Fraley’s General Store (c. 1900; 12625 Catoctin Furnace). The furnace complex was established by Thomas Johnson of Rose Hill and his brothers, James, Roger, and Baker. Operations ceased in 1903.