Cask Ale in San Francisco?

I’m visiting San Francisco next month and one thing I’m particularly hoping to try is some great cask ale, like merry old england.

Suggestions? Thanks!

Toronado usually has something. Magnolia down the street usually has a few and they win a lot of awards for English style beers but I don’t know if I’ve had anything of theirs on cask.

Not sure about cask status, but this place has a typically amazing selection: http://monkskettle.com/