You are very welcome. Have you dug very deep to check it out?
I've volunteered a lot down in Missouri, where the soil is super rocky mixed with sandy clay everywhere. While digging post holes I realized that around 8" down the rocks thinned significantly.
Yeah so far I have dug in many different places... planted an apple tree the other day only had to dig in two different places to find a place betwwen boulders. I hope it grows.