Around here, people that looked for them used to walk over newly plowed ground.
I have found a few here over the years, the two which were found several years apart, I found near water sources. One along a branch that I guess had been unearthed due to heavy rains. The other close to it at the edge of what is now a pond. There are several springs in the area. Another one was found in our garden spot a ways away from the others.
Friends in another county, north of here, have found a bunch of them. all kinds and sizes of arrowheads as well as other articles. I think they found a lot them when working in their tobacco ground. I believe that with as many as they have found and the variety, that there could likely have been a camp there.
Tons have been found here over the years, I don't recall having ever found one myself, but my mother has a basket full that came from the farm since before my knowledge. More interest here is on Civil War relics that have been found. We have quite a bit of those too.