Slate Industry
One of the largest slate-producing centers in the United States. Welsh slate entrepreneur William Roberts first sighted slate in 1844 near a local barn. He and other Welsh immigrants established and worked in numerous slate quarries in this region. Nearby quarries included "Big Franklin"( c.1852), the largest excavation in Slatington; and "Williams," known for its production of school slate. These sites also contributed to the increase of slate roofing during the late 19th century.
David Rumsey Map Collection, Stanford LibrariesBarry Lawrence Ruderman Map Collection, Stanford LibrariesBarry Lawrence Ruderman 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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