Category:Principio Furnace

**Principio Furnace**
	human settlement in United States of America
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Instance of	human settlement;
Location	Cecil County, Maryland
Heritage designation	National Register of Historic Places listed place (A, D, NRHP site, Principio Furnace, 1972–);
	39° 34′ 38″ N, 76° 02′ 11″ W
Authority file
	Q7245139; NRHP reference number: 72000575
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English: The Principio Iron Works was founded in Cecil County, Maryland in 1719. It became one of the most successful in the colonial ironworks by the 1740s, producing pig iron for sale in London. The works were destroyed by the British in 1813, and rebuilt in 1837. The site produced iron until 1925. Part of the stone furnace still remains on the site.