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Coal Discovery

Coal Discovery is a Pennsylvania historical marker in Tioga County, dedicated 1975.

William B. Wilson Hwy. (US 15)

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While acting as scouts for the Williamson Road party in 1792, Robert Benjamin Patterson discovered coal at present-day Blossburg. The first drift to mine the coal was opened on Bear Creek by David Clemons about 1815.

Maps this old were drawn largely by eye, so places on them can sit miles from where they really are. The pin is ours and marks the marker's location today.

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Historical maps covering this location

A Map Of The State Of Pennsylvania, 1792, covering the location of Coal Discovery, with a pin at the marker's coordinates
A Map Of The State Of Pennsylvania, 1792, covering this location. David Rumsey Map Collection, Stanford Libraries. The pin is ours, placed from the marker's coordinates.
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For example, one family's tree showed the Articles of Confederation marker in Pennsylvania standing under a mile from where William Gabby lived in the 1760s.

What that marker records spans 1777 to 1789, overlapping William Gabby's years there.

From one family's 77-marker roster

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Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

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