There are a lot of neat things in that general area.
There are multiple rock walls. Some that goes up and down the hill with the slope. Others that go side to side against the slope.
The ones that go side to side are a lot like the old mayan walls that they had built up for planting to help retain water better on the steep hill sides.
One is really special. On the side that you can see, is about 2 foot tall (what you can still see of it today) and the uphill side was either back filled or if it was filled by erosion naturally, even with the top of the walls, which by natural means of erosion, would probably take 10000 years to fill in over 2 feet of earth but there are no records of activity in the 200 years that is on record.
I'm not certain whether it was natural erosion or done by man. I'm going to guess natural erosion basing that there are some trees above the wall that are easily many hundreds of years old and 3 foot or more in diameter of old growth forest.
Sorry, this is the best photo that I can find of it at the moment and shows just how much the upper side has filled in even with the top of the wall. I actually found this by accident squirrel hunting when I was about 12 years old because I got turned around some and was a ridge farther over than what I thought and I remember thinking oh crap, where did this come from? Then my mind went to "oh crap, where am I at?" LOL I could hear the cars on the highway and figured it out in a few minutes where I needed to go to get back but was still a neat find.
There is a place in Georgia that is on the national register called Track Rock that has a lot of the same characteristics as this area does. And why you should probably be able to understand why I won't tell people where it is. You're welcome to read more about that here if you'd like:
https://peopleofonefire.com/track_rock_archaeological_zone.html
Also a lot of rock mounds.
I have always thought the mounds were burial sites and there are a lot of them unless it had been farmed and the rocks were just stacked up to get out of the way. Regardless, the rocks didn't stacked up by itself.
Here are just two of the mounds, but there are easily more than 50 around the top of that ridge.
Only a few people have seen this or know where it is and we don't advertise because we don't want the area bothered by either professional grave robbers (archeologists) or anyone else. We have always treated the area with the respect that we think it deserves and if anyone were to ask me where it is, will not get the right answer anyway.
hint: It's really in Nancy Pelosi's back side.
There are a few other strange things up there that I can't explain. A few ditches that appear and disappear and in my almost 50 years I have never seen a drop of water flowing through them. Meaning, I think that something may have been mined there at one time. I know for certain there is also blue clay in the area, which is rare.
And there is another place where literally thousands of rocks have been dumped over the hill and are strewn out all the way down to the creek.
Whatever took place in that area where the pictures were taken, was on a pretty big scale for all that work to have went into it.