| Etna Furnace | |
| Nrhp Type: | hd |
| Nocat: | yes |
| Nearest City: | North of Williamsburg: roughly the area south and east of the bend of the Frankstown Branch Juniata River at Mount Etna, Catharine Township, Pennsylvania |
| Coordinates: | 40.5261°N -78.1864°W |
| Built: | 1805, 1832 |
| Builder: | David Stewart, William Moore, John Canan |
| Added: | April 11, 1973, September 6, 1991 (Boundary Increase) |
| Refnum: | 73001593, 91001145 (Boundary Increase) |
| Designated Other1 Name: | Pennsylvania state historical marker |
| Designated Other1 Abbr: | PHMC |
| Designated Other1 Date: | August 01, 1961[1] |
| Designated Other1 Link: | List of Pennsylvania state historical markers |
| Designated Other1 Color: | navy |
| Designated Other1 Textcolor: |
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Etna Furnace, also known as Mount Etna Furnace, Aetna Furnace, and Aetna Iron Works, is a historic iron furnace complex and national historic district located at Catharine Township, Blair County, Pennsylvania. The district includes five contributing buildings, six contributing sites, and two contributing structures. It encompasses a community developed around an iron furnace starting in 1805. Included in the district is the four-sided stone furnace (1808), gristmill site (c. 1793), canal locks (c. 1832), site of lock keeper's house (c. 1832), aqueduct (c. 1832, rebuilt 1848), two small houses, the ruins of a charcoal house (1808), the foundation of a tally house, a blacksmith shop (c. 1831), bank barn (c. 1831), foundation of a boarding house, three family tenant houses, two iron master mansions (one destroyed), a store and paymaster's office (c. 1831), Methodist / Episcopal Church (1860), and cemetery with graves dating between 1832 and 1859.[2] [3]
It was added to the National Register of Historic Places in 1973, with a boundary increase in 1991.