McMenamins released its Irish Stout on the first of March. According to the brothers' press release, McMenamins Irish Stout will be served all of March on nitro tap.
From the web site:
Irish eyes will be smiling all March long with the arrival of McMenamins Irish Stout. This is our Saint Patrick's Day Seasonal and will pour exclusively on our ‘Nitro' taps the entire month of March. McMenamins Irish Stout is our interpretation of the internationally renowned beer style that originated in Ireland and was popularized by legendary brewing institutions, such as Guinness, Murphy's and Beamish. Historically speaking, the style emerged early in the 19th century from attempts by Irish brewers to capitalize on the success of London porters. To cut costs, unmalted (and therefore, untaxed at the time) roasted barley was used, which imparted a unique and distinctively different coffee-like bitterness to the flavor and aroma of the ale. Thus, a new beer style was born.