http://www.nps.gov/SEAC/hnc/ou...
Wayne. This is a map of paleoindian archaeological sites in the Southeast. As you can see there are a lot of them. And more are discovered every year or so.
So, yes, 10,000 years ago there was a lot of activity in this area, and some of that activity is written in the soil. To me what was so amazing about that 30 ft profile on the Tombigbee River bank at Aliceville, Alabama was not only that occupations from present to the paleoindian period were documented in one place, but also once you shave off a 30 foot high profile, there is a danger it will cave in on you! So there is both awe at the information there, and fear that it may not stay intact long enough to record it. Riverine soil profiles are usually sandy alluvium, so they are very unstable once exposed.
From the soil, you can read not only the pre-history of human cultures, but also the weather, animal and plant distributions over time, and soil building events like wind, erosion, flooding, fire, etc.
