The sale is on Saturdays. They start the sell at 3 usually, but livestock doesn't usually run until 6. They mostly sell chickens, but some goats do run through. The goats are generally cross breed. There is a more commercial sale in Darlington on Tuesdays. You can find dairy goats there, but I never get to go because I can't find a sitter in the middle of the day. I know a neighbor of mine bought five very nice dairy goats from there. Its out on hwy 151.
To find the Jeffereson barn, you take a right at the last light going into town...you know what..it'd be better just to stop at the station once you get to Jefferson on a Sat. and ask them, because I don't know any of the road names. I give typically SC directions...LOL The Jefferson barn stays crowded and you'll have to get there around 5 to get a seat.
There are also sales in Rock Hill on Friday nights and Monroe, NC has livestock auctions, but I don't remember when. You can find other auctions by looking in the market bulletin. Google South Carolina Market Bulletin and its available online. This is also a good place to find any livestock in SC.