GREENE COUNTY
in Southwestern Pennsylvania had one furnace, no trace.

Mary Ann - was on Ten Mile Creek in Clarksville, Morgan Township. Swank's "Iron Making in Pennsylvania" says the furnace was built before 1800 by James Robinson. The establishment was abandoned before 1820, but the stack was visible for some time after 1840. (jp) says the Mary Ann was built in 1777 or 1784 by Mr, Oliphant, Sr. Mr. Oliphant, Jr. says his father never built a furnace in Greene County. "The Horn Papers" published by the Greene County Historical Society reports the furnace was built in 1779 by a Mr. McCullough. James Robinson is listed in an old atlas of Greene County as the owner of the land upon which the furnace was supposedly built. Apparently there was a furnace at this location; and it seems that James Robinson, as owner of the land, was the most logical man to build it(s&t). Because of the grading and filling for the embankment of the old Monongahela Railroad all traces are gone(s&t).
Follow US40 east from Washington about 15 miles to Beallsville. Turn right at the light and follow the markers to Clarksville (SR2041 in Washington County). Cross the creek, go through town, cross the creek again. At the second crossing you will see a railroad bridge to the left (1960's). Follow US40 east from Washington about 15 miles to Beallsville. Turn right at the light and follow the markers to Clarksville (SR2041 in Washington County). Cross the creek, go through town, cross the creek again. At the second crossing you will see a railroad bridge to the left (1960's). As accurately as could be determined the furnace stood against the hillside directly under the railroad embankment. Because of the grading and filling for the embankment of the old Monongahela Railroad all traces are gone(s&t)
Coordinates 39º 58' 17"N - 80º 2' 48"W.

Greene County Special Sources:
Sharp & Thomas (s&t) Guide to Western Pa. Iron Furnaces, 1966 WPHS