This is an American wild ale (or sour ale), brewed by The Lost Abbey, especially for Toronado in San Francisco.
It's a blend of three different barrel aged beers by The Lost Abbey. I tried to highlight the major yest, hops, malt, and extras of each.
I CANNOT wait to taste this rare beer at Toronado tomorrow at their 23rd Anniversary Party! (assuming,of course, that they will be offering it!)