Mountain Dome is truly a family owned and operated winery. We opened our winery in September of 1984, having built the geodesic dome and 8,500 square foot winery ourselves. It is located on an 85 acre forest in the foothills of Mount Spokane. At Mountain Dome, we focus exclusively on sparkling wines made in the traditional Méthode Champenoise..sparkling wine made in the true French method of Champagne.