aerial photograph of Napa valley California in Spring, Highway 29 toward Mount St. Helena. Mustard is blooming in many vineyards. In the foreground, the Oakville, AVA.  In the middle area of the photograph, Opus and Mondavi wineries.
aerial photograph of Napa valley California in Spring, Highway 29 toward Mount St. Helena. Mustard is blooming in many vineyards. In the foreground, the Oakville, AVA. In the middle area of the photograph, Opus and Mondavi wineries.