An appellation is a geographical area recognized for a distinctive combination of soil, climate, and identifiable regional wine character. The word appellation comes from the French Appellation d'Origine Controlee laws, which are laws meant to ensure quality within specific regions of France. These same principles have been used to create American Viticultural Areas (AVA) in the United States.


Saint Helena Appellation (AVA)

Saint Helena Appellation Climate: Warm, due to greater protection from western hills, with less fog or wind incursions. This narrowest part of the Napa Valley floor floor provides more heat reflection off the hillsides. Mid-summer temperature peak is often in the 85 -90°F range (30 to 35°C).

Elevation: 150 to 5 00 ft. (46 to 152 m).

Rainfall: 38 to 40 inches (95 to 101 cm) annually.

Soils: South and west borders are more sedimentary, gravel-clay soils, with lower fertility and moderate water retention. Further north and to the east soils are prevalently volcanic in origin and are deeper and more fertile.  More Info.