When we visited Red Willow Vineyard in early September, Mike Sauer talked passionately about the history of the land in the Yakima Valley and how it was affected by the repeated Lake Missoula floods at the end of the ice age. The area that became his peninsula vineyard, with its high elevation, was above the water level and not affected by the water-deposited silt and sand like much of the valley floor. By the time the first wine grapes were planted in 1973 at Red Willow Vineyard, the lasting lesson learned was wine grapes do best on poor soil and vines love the hillsides. The success of Red Willow Vineyard, where those 1973 Cabernet Sauvignon vines are still in production, demonstrates that.
Mike told the amazing story of Red Willow Vineyard to us that day. Rather than paraphrasing it here, I will point you to it on the Red Willow Vineyard Web site. However, I will share this, which is quoted on the Web site from An Illustrated Guide to Wine:
Four things go into the making of wine, whether it be good, bad or indifferent. First of all, the soil from which the vine grows; second, the climate, particularly the sun or the amount of sunshine which shines upon the vine in any given year; third, the type of grape used in the making of the wine; and last, but by no means least, the hand of the vigneron who makes the wine. The first is immovable and permanent, the second variable, the third important, and the last human. When these four come into alignment, the result can be a near miracle, and by the grace of God this sometimes happens.