Lonaconing Furnace, as seen in September, 2013.
|Location||E. Main St., Lonaconing, Maryland|
|Area||0.5 acres (0.20 ha)|
|Built by||Harris, J.N.|
|NRHP Reference #||73000886|
|Added to NRHP||June 19, 1973|
Lonaconing Furnace, also known as The George's Creek Coal and Iron Company Furnace No. 1, is a historic iron furnace in Lonaconing, Allegany County, Maryland, United States. It is a truncated square pyramid constructed of sandstone, 50 feet (15 m) high, 50 feet square at the base, and 25 feet square at the top. It first produced iron in 1839, then the iron operation was abandoned in the mid-1850s, the Loncaconing Furnace complex included a top house, molding house, engine house, and two hot-air furnaces for heating the blast. None of these ancillary structures remains. It played a significant role in demonstrating that both coke and raw bituminous coal could be used as fuels in the manufacture of iron. It is known as "the first coke furnace, whose operation was successful, erected in this country."
- National Park Service (2010-07-09). "National Register Information System". National Register of Historic Places. National Park Service.
- Katherine A. Harvey (February 1975). "National Register of Historic Places Registration: Lonaconing Furnace" (PDF). Maryland Historical Trust. Retrieved 2016-01-01.
- Lonaconing Furnace, Allegany County, including photo in 1979, at Maryland Historical Trust
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