Mercer Canyons Wine epitomizes the pioneering history of our family who first ventured west to the Columbia Valley in 1886. Raising cattle was a way of life in the Mercer family for three generations, grazing out on the open plains of Eastern Washington lands which are now dedicated to growing our world class wines. Back then the cattle enjoyed the warm days, cool nights and long summer season of the region; conditions which now produce bright, fresh and rich Red Wine Blends. - Rob Mercer. Respect the land. Painting by Diane Whitehead. dianewhitehead.com. MercerWine.com. Red wine 13.9% alc. by vol. Produced & bottled by Mercer Wine Estates, LLC, Prosser, WA.