Millions of years ago, the Sierra Nevada mountains roiled with volcanic activity, and lava flowed down from the mountains, covering the foothills. Over thousands of years, much of the hardened lava deteriorated away, but select areas in the Sierra Nevada foothills still have volcanic soil, which is ideally suited to the production of fine wine grapes. The Jones family purchased one of the few special volcanic sites to start their vineyard and winery. The name "Lava Cap" reflects the unique topography of the site. This "lava cap" is one of the reasons why the wines are so special.