sandbur
5 year old buck +
I have several chestnut apple trees, and I have notice mid to late August they taste the best, I still have a few hanging on them, but they have gotten tart now. I thought maybe they were Witney crabs, but they look different.
Chestnut tends to have a squatty shape. This apple is from the north side of the tree. Those on the south side are more red(and they have more hail damage)
In my climate, chestnut flavor improves nearer the end of drop time. I just picked a bucket with some Kinderkrisp for sauce.