Markko Vineyards is a winery founded in Conneaut, Ohio by Arnulf W Esterer and Tim Hubbard in 1968. With the advise of viticulturist and winemaker Dr. Konstantin Frank, the winery was gradually able to produce wines with Chardonnay and Riesling vinifera grapes successfully in the cold northern Ohio growing environment.[1]
The approximate location for Markko Vineyards is .