850 – 1,490 feet
wind-blown glacial loess
mostly in winter
average 2,700 – 3,300
growing degree days
SEVEIN’S 2,700 ACRES CONSIST of a unique mix of soil types, elevations, aspects, and microclimates. The property covers a 600 foot slope of 15 million year–old ancient basalt flows overlaid with combinations of windblown loess and glacial alluvial sediment. Numerous basalt outcroppings are exposed on the property and many glacial erratics—foreign granite stones carried there in floating blocks of ice—have been found. At the highest elevation of 1,490 feet the loess deposit is as little as two feet over fractured basalt. Descending the slope northward to the 1,200 foot level, loess deposits increase in depth to over 15 feet, marking the approximate maximum elevation of the Missoula floods and resulting slack water silts. Continuing down slope to the 850 foot elevation, there are very deep loess deposits and flood silts overlying the basalt base. This rich combination of soils and basalt creates a multitude of growing regions across the property to accommodate an owner’s winegrowing vision.
WALLA WALLA VALLEY VINEYARDS OF DISTINCTION
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