An old Cabernet Sauvignon vine at Kestrel View Estates Vineyard near Prosser. Photo courtesy of Wine Yakima Valley Vines planted 30 to 40 years ago are hard to find in Washington State, a relative newcomer to the wine world. Kestrel Wines of Prosser holds the distinction of owning some of the state’s oldest Chardonnay, Merlot, Cabernet Sauvignon, Cabernet Franc, and Malbec, with some dating back to 1972. Kestrel Wines, owned by Helen Walker, can’t take credit for planting the vineyard—the vines were planted by pioneer Mike Wallace and sold to Kestrel in 1996. But the vineyard has stayed in production, […]