I have no idea what the actual one resembled, but this image seems consistent with those found in this part of Ohio. I don't think anything is left standing.
Mary Ann Furnace Mary Ann Twp.Located at the intersection of Hickman Road and County Road 243, along the banks of Rocky Fork Creek.
In the early 1800's a high grade of iron ore was discovered in the hillsides of Mary Ann Township. A sawmill was constructed in 1815 out of sandstone, and lumber was cut to feed the furnace.
Next, the furnace was built, named for founder David Moore's wife Mary Ann. The furnace was the first industry in Licking County, and it continued operating for the next forty years. It was famous for its ornate cookstoves. Workers wore brightly colored uniforms and were paid fifty cents for two weeks work. The town was so prosperous that it was once considered a candidate for the county seat. Then, in 1860, the furnace burned down (how's that for irony?). For years a pile of rocks was visible where it had been, but that's long gone. Now there's a house which once served as a tavern and an operating school.
On my Dad's property, way out in back, over the hill, down the hollow and over the next hill, supposedly was a coal mine. Coal was taken from this mine to the furnace. It was in Mary Ann Township.