The Anthracite Iron Furnaces of Alburtis

As it stands today, the ruin of Lock Ridge Furnace at Alburtis, in Lehigh County, looks more akin to a misplaced Norman fortress than a nine­teenth century anthracite iron furnace. The partially re­stored walls, reinforced by heavy metal bolts, give the venerable Pennsylvania structure a false touch of the medieval. The productive history of the anthracite iron furnaces began in December 1866...
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