High Valley is an American Viticultural Area (AVA) located in the eastern part of Lake County, California.
Red volcanic soils can be found on the hillsides while alluvial fans and benches on the valley floor provide well-drained beds for the vines.
[3] The valley itself is 9 miles (14 km) long and 3 miles (4.8 km) wide, with an east–west orientation unusual in the Californian coastal range, a result of volcanic activity of Round Mountain, an extinct volcano lying within the valley.
There are 15 struggling Zinfandel and Muscat vines planted by the Ogulin family, which brought them from Slovenia around 1875.
The old vines shouldn't be a surprise, for before Prohibition, Lake County was producing reputable wines before the vineyards were replaced with other crops.