Green Bay, WI
Formerly available at the Millionaire Drive Inn. According to brand editor Tony Waitekus, Sno-cap is still available at Titletown Restaurant in Green Bay as of 12/31/2006.
From the Sno-Cap website:
"The Sno-Cap root beer sold at Titletown Brewing Co. has been perfected by Grandma Gladys, who owned one of these drive-ins. Her business, called Sno-Cap Drive In, was located on Velp Avenue on Green Bay's West Side. Glasses of root beer sold for 5 and 10 cents and gallon jugs could be purchased for 75 cents (with a 10 cent deposit on the bottle)."