Spencer Roloson produces wines with grapes harvested from four vineyards. The steep and rocky Madder Lake Vineyard is located directly north of Mount St. Helena in Clear Lake appellation of Lake County. The La Herradura Vineyard is east of St. Helena at the base of Howell Mountain. Viognier is grown at the Noble Vineyard is at the foot of the Mayacamas Mountains, and Grenache blanc at the Esperanza Vineyard in Clarksburg near Sacramento.