The majority of Amador’s 3,700 vine acres and 40 wineries are in the northern part of the county in the Shenandoah Valley, near the small town of Plymouth. Here, vines are planted on rolling, oak-studded hillsides ranging from 1,200 to 2,000 feet in elevation. Slightly to the east is the small Fiddletown appellation, which boasts even higher-elevation vineyards.

Most Amador vines are planted in volcanic Sierra Series soils – primarily sandy clay loam derived from decomposed granite. These friable, moderately dense soils effectively retain Amador’s 36 to 38 inches of annual rainfall, enabling most growers to dry-farm their vineyards. Dry-farming, coupled with the low nitrogen and phosphorous content of the soils, results in sparse vine canopies affording the grapes excellent sunlight exposure.