Castilla y Leon
¥Largest of the 17 autonomous regions of Spain
¥The Northern part of the Central Plateau between 2,000 and 3,000 feet above sea level, thinly populated and almost entirely encircled by mountains, giving the region a harsh climate of short, hot summers followed by long, cold winters.
¥Nineteen inches of rain fall mainly in the winter.
¥Frost is a threat in the spring.
¥The Duero River provides water and vines are planted along its length.
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