Odell's Isolation Ale, completely last year. By the time that winter had arrived, it had vanished from the stores!
As the owner of a small Pueblo liquor store with a good craft beer selection put it, "Beer is like clothes these days. They sell the fall line in the summer, and by fall, it's gone."
This year I timed it right. They seem to have switched to cans. Oh well, I can still pour it in a glass — except when there is firewood to split.
The liquor store owner says it might last through November. Then it's time for the spring seasonals, apparently. Time is out of joint.