Located on Jacobs Creek between Westmoreland and Fayette counties, on the Fayette county side of the creek, a few miles above the confluence with the Youghiogheny River. Built 1789, by William Turnbull and Peter Marmie. Out of blast 1802.

Image of the furnace.
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The following legend is told about this furnace: with his furnace on the verge of collapse Marnie drove his pack of hunting dogs across the ramp into the blazing tunnel head and then jumped in himself.