Mount Veeder AVA is an American Viticultural Area located within Napa Valley AVA among the Mayacamas Mountains. The boundaries of this appellation include 25 sq mi (64.7 km2) with 1,000 acres (400 ha) planted on thin volcanic soil. Many vineyards are found on the steep mountain face some as steep as 30°. The steepness of the angle gives the vineyards benefits of more direct sunlight and better drainage. Cases produced: approximately 40,000 per vintage, about 1.3% of total Napa Valley production.