Would that site be Meadowcroft?
This is where the found a firepit, stone tools and bone fragments at 10,000 BP and decided to dig deeper, finding more specimens at lower and lower (earlier and earlier) levels.
I'm not sure, but I believe Meadowcroft was dug before the Cactus Hill, Va or Topper, SC sites.
Yes, Meadowcroft. JM Adovasio spent thirty years digging there. Below is his book on the subject. It's a very good book too.