The head was just breaking the surface, there was a loop of the back, and then the tail, which came straight up out of the water and swung off to the east. The bridge builders took out a lot of trees where they were going to put the new bridge. The dragontree was not in the way, but between their machinations, and the drought in 2006, the dragontree was broken up, and this part washed ashore on the south side of the new bridge. (I do believe there was a dragon in the lake, her spirit living in the dragontree. On a full moon-lit night, you could see her out there, playing in the silkenlight of the moon on the water! When they destroyed her tree, she chose to leave the area. I miss her.
If you look really hard, and let your imagination loose, you can almost see the spark of dragonspirit that once inhabited this bit of log. That's a dragon's head! No one will ever convince me otherwise!