Nice find, I think Joshuaream is correct about the typical distribution area of a Hardin. Like many VA finds, that's a tough one to type. One side of the stem looks almost bi-furcated and the other side looks like a stemmed piece like maybe a Savannah River. Looks like maybe a bi-furcate with a little damage to one of the lobes, that would make it older than a Savannah River, tough call.. H.H.