Stephen and Anvil,
This is all very interesting even to myself, I have some family that live in North Carolina, my Uncle is a retired Lutheren Minister. He had a very heavy passion for steam locomotives and railroads in general, as they were his main source of travel between communities in the 40's thru the 70's while he served. He visited some very obscure communities in Virginia quite often, I will send him a message and see if he knows anything about this area.
I find it very intersting that some mining operations actually did mine pyrites (Iron SUlfides) especially for the sulfur content since Pyrite is very high in sulfur 53.3 percent and only 46.7 percent Iron that is why it is so yellow (Pg.161 of the Mine Examiner and Prospector's Companion, 1903, G.W. Miller) I would love to know more about this mining operation, and what the percentages of Iron Pyrite were being pulled out of it, and what other minerals were being found. There is a web site that is pretty deeply rooted in knowledge about any mining operations in the world or in the United States for that matter. If you wanted to look up pyrite and all the different localities there are you could be amazed at all the places there are on the US continent that has Iron Sulfide Mineralization Formations by looking at this site.
Here is the short cut to the main site. [
www.mindat.org]
And I looked up your Cabin Branch Mine and this is what I got. [
www.mindat.org]
Not much but something to look at if yer a rock hound like myself.
Still a Student,
Dave