At the BarFood & DrinkNorthwestTravel & LifestyleU.S.U.S. Destinations Prosser, Washington: Harvesting the Vineyards by Nancy Zaffaro November 14, 2016 by Nancy Zaffaro November 14, 2016 In Prosser, Washington, harvesting the vineyards means a time of color, aroma, stunning beauty—and hard work. Winemaking is big business in Prosser and the rest of the Washington’s Yakima Valley. …