Wow...that is odd! But Black walnuts still fall with their padded sheath on and are much more likely to leave a black smear. I have lots of oak trees around my drive at my other house in MO and I have never had one make that kind of impact.
In response Leesy Frank to her Publication
That's a good point, I forgot about the sheath those have. Are acorns big enough to leave an impact like this if they were to drop on their pointiest parts?
