This old oak had seen many years before it had to be cut down. The part of the trunk sitting on the ground was huge. I found the tree rings fascinating, and had to take a photo. They are a record of the climate as the tree grew, and you can clearly see the lean years where the rings are narrow, and the bountiful years where the rings are wider apart.
On a sour note – I don’t usually get on my high horse but the newly passed Enterprise and Regulatory Reform Act is of major concern to all UK photographers. This article in The Register puts it rather succinctly. Note to whoever wants my vote at the next election – repealing this act is a good start.