At less than a quarter square mile, the Cole Ranch AVA is the smallest appellation in the United States. The AVA is located between Hopland and Boonville at elevations ranging from 1400-1600 feet, and is often likened to the Jura of France. Surround by forested hills, it is unique for its terrarium-like setting and cool climate / late ripening relative to neighboring Ukiah. This 55-acre vineyard was originally planted in 1971 by John Cole, but is now under the management of Mike & Jill Lucia who are practicing organic without any herbicides or pesticides.