Old brick stacked at the base of a tree, any idea why?
Looking around my property, which was a 1,000+ acre farm for about 150 years, I found two large trees with old red bricks at the base, just barely below soil and at least 6" deep of bricks. Another smaller tree (~12" at base) is also growing right beside the big one, touching at the base, and the young tree is growing over many bricks, entwined under roots. There is a small spring, more like wet marsh, close. However, there is a larger spring about 50' away. I haven't put a detector to it but any idea what it could be?
I thought a spring structure but the bricks are only by the tree. Another tree about 20' away has bricks around it too with a large white rock sitting on top. Only the white rock is above soil, and just a bit of it.