Devil's Tramping Ground - camping area with paranormal reputation

I tried to lookup if there was a solid explanation as to how this occurred. Apparently there isn't other than just the soil is infertile. But it isn't known what caused that patch of soil to be infertile. There is however a beer with same name from NC which is gnarly - https://untappd.com/b/aviator-brewing-company-devil-s-tramping-ground-tripel/9366