The greater southern Appalachian region (especially West Virginia, Kentucky, and the mountainous parts of Tennessee and Virginia) is traditionally an introverted culture because of the isolation of the mountains. "Mountain people" still exist in WV, they hide from the census, and have no inclination to join the greater society. It's the stereotype of the suspicious, quiet, watchful, strong hillbilly who will chase you off of their property with a gun...which isn't a pleasant image...but I also think there's something to be respected about it, it's very "live and let live" in a primitive sense, a hermit's paradise, really. My grandfather was a personification of this, and I feel this influence on my own personality though I am much more attuned to modern mainstream culture.
It's an interesting contrast to the constant concern with societal image in the wealthier circles of the deep South.