The 2013 NH Preservation Month blog can be viewed here:

Sunday, May 8, 2011

NH Iron Factory Blast Furnace - Franconia

Built in 1859 by noted ironmaster Seneca Pettee, Jr., this octagonal stone structure, New Hampshire’s only surviving blast furnace, produced cast iron from local ore. 
Eligible for listing on the National Register of Historic Places.
Visible across the Gale River from Main Street (Routes 18 and 116)

NH Division of Historical Resources photo


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