Founded in 1954, Virgen de la Sierra is a grape growers co-op with 579 members, and 710 hectares (1,753 acres) of vines growing at 750 meters above sea level. The average age of the vines is close to 40 years. The principal grape variety is Garnacha (60%). Others include Macabeo or Viura (20%) and Tempranillo (16%), with the remaining 4% being a mix of experimental varieties: Syrah, Cabernet Sauvignon, and Chardonnay.
The region's semi-arid climate and high altitude make for ideal growing conditions for quality Garnacha and Macabeo grapes. Hot dry summers, with a sharp shift in daytime to nighttime temperatures let grapes reach full ripeness, while maintaining good levels of acidity. The red iron-rich oils are rocky, with a mix of sand and gravel and a low amount of organic material. A thick clay subsoil helps retain moisture through the long dry summer months.