Valley Furnace
First furnace to use only anthracite for fuel, 1836. Built by Dr. F.W. Geissenhainer, who patented the method in 1833. Process in use continuously by the Pottsville or Pioneer Furnace, 1839 and after.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford Libraries
Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov
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